1494539550 has 144 divisors (see below), whose sum is σ = 4602672672. Its totient is φ = 340588800.

The previous prime is 1494539509. The next prime is 1494539593. The reversal of 1494539550 is 559354941.

1494539550 is a `hidden beast` number, since 1 + 4 + 94 + 5 + 3 + 9 + 550 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 1494539496 and 1494539505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1703712 + ... + 1704588.

Almost surely, 2^1494539550 is an apocalyptic number.

1494539550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1494539550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2301336336).

1494539550 is an abundant number, since it is smaller than the sum of its proper divisors (3108133122).

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

1494539550 is a wasteful number, since it uses less digits than its factorization.

1494539550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443 (or 1435 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 45.

The square root of 1494539550 is about 38659.2750837364. The cubic root of 1494539550 is about 1143.3235192166.

The spelling of 1494539550 in words is "one billion, four hundred ninety-four million, five hundred thirty-nine thousand, five hundred fifty".