157484440 has 16 divisors (see below), whose sum is σ = 354340080. Its totient is φ = 62993760.

The previous prime is 157484387. The next prime is 157484441. The reversal of 157484440 is 44484751.

It is a happy number.

It is a super-2 number, since 2×157484440² = 49602697684227200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 157484440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157484441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1968516 + ... + 1968595.

It is an arithmetic number, because the mean of its divisors is an integer number (22146255).

Almost surely, 2^157484440 is an apocalyptic number.

157484440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157484440 is an abundant number, since it is smaller than the sum of its proper divisors (196855640).

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

157484440 is a wasteful number, since it uses less digits than its factorization.

157484440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3937122 (or 3937118 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 37.

The square root of 157484440 is about 12549.2804574605. The cubic root of 157484440 is about 540.0233643297.

The spelling of 157484440 in words is "one hundred fifty-seven million, four hundred eighty-four thousand, four hundred forty".