157481240 has 64 divisors (see below), whose sum is σ = 418037760. Its totient is φ = 52248960.

The previous prime is 157481227. The next prime is 157481243. The reversal of 157481240 is 42184751.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 157481197 and 157481206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157481243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 392 + ... + 17751.

It is an arithmetic number, because the mean of its divisors is an integer number (6531840).

Almost surely, 2^157481240 is an apocalyptic number.

157481240 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 157481240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209018880).

157481240 is an abundant number, since it is smaller than the sum of its proper divisors (260556520).

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

157481240 is a wasteful number, since it uses less digits than its factorization.

157481240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18192 (or 18188 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 157481240 is about 12549.1529594630. The cubic root of 157481240 is about 540.0197066425.

The spelling of 157481240 in words is "one hundred fifty-seven million, four hundred eighty-one thousand, two hundred forty".