1494815040 has 224 divisors, whose sum is σ = 5444459520. Its totient is φ = 385689600.

The previous prime is 1494815039. The next prime is 1494815041. The reversal of 1494815040 is 405184941.

1494815040 is a `hidden beast` number, since 1 + 494 + 81 + 50 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (1494815039) and next prime (1494815041).

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 = 1494814986 and 1494815004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1494815041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 265050 + ... + 270630.

Almost surely, 2^1494815040 is an apocalyptic number.

1494815040 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 1494815040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2722229760).

1494815040 is an abundant number, since it is smaller than the sum of its proper divisors (3949644480).

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

1494815040 is a wasteful number, since it uses less digits than its factorization.

1494815040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5638 (or 5622 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 1494815040 is about 38662.8379713647. The cubic root of 1494815040 is about 1143.3937648975.

Adding to 1494815040 its reverse (405184941), we get a palindrome (1899999981).

The spelling of 1494815040 in words is "one billion, four hundred ninety-four million, eight hundred fifteen thousand, forty".