1494239040 has 672 divisors, whose sum is σ = 6390558720. Its totient is φ = 312864768.

The previous prime is 1494239027. The next prime is 1494239041. The reversal of 1494239040 is 409324941.

1494239040 is a `hidden beast` number, since 149 + 423 + 90 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a super-3 number, since 3×1494239040³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1494238986 and 1494239004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1494239041) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18002839 + ... + 18002921.

It is an arithmetic number, because the mean of its divisors is an integer number (9509760).

Almost surely, 2^1494239040 is an apocalyptic number.

1494239040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1494239040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3195279360).

1494239040 is an abundant number, since it is smaller than the sum of its proper divisors (4896319680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1494239040 is a wasteful number, since it uses less digits than its factorization.

1494239040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 1494239040 is about 38655.3882401923. The cubic root of 1494239040 is about 1143.2468839788.

The spelling of 1494239040 in words is "one billion, four hundred ninety-four million, two hundred thirty-nine thousand, forty".