157048640 has 56 divisors (see below), whose sum is σ = 427402752. Its totient is φ = 53844480.

The previous prime is 157048631. The next prime is 157048657. The reversal of 157048640 is 46840751.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 157048640.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 32816 + ... + 37295.

It is an arithmetic number, because the mean of its divisors is an integer number (7632192).

Almost surely, 2^157048640 is an apocalyptic number.

157048640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157048640 is an abundant number, since it is smaller than the sum of its proper divisors (270354112).

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

157048640 is an equidigital number, since it uses as much as digits as its factorization.

157048640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70135 (or 70125 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 157048640 is about 12531.9048831373. The cubic root of 157048640 is about 539.5247762350.

The spelling of 157048640 in words is "one hundred fifty-seven million, forty-eight thousand, six hundred forty".