157775840 has 48 divisors (see below), whose sum is σ = 373811760. Its totient is φ = 62929920.

The previous prime is 157775819. The next prime is 157775843. The reversal of 157775840 is 48577751.

It is a junction number, because it is equal to n+sod(n) for n = 157775791 and 157775800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157775843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64235 + ... + 66645.

It is an arithmetic number, because the mean of its divisors is an integer number (7787745).

Almost surely, 2^157775840 is an apocalyptic number.

157775840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157775840 is an abundant number, since it is smaller than the sum of its proper divisors (216035920).

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

157775840 is a wasteful number, since it uses less digits than its factorization.

157775840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2835 (or 2827 counting only the distinct ones).

The product of its (nonzero) digits is 274400, while the sum is 44.

The square root of 157775840 is about 12560.8853191166. The cubic root of 157775840 is about 540.3562349924.

The spelling of 157775840 in words is "one hundred fifty-seven million, seven hundred seventy-five thousand, eight hundred forty".