157422940 has 24 divisors (see below), whose sum is σ = 332422272. Its totient is φ = 62619840.

The previous prime is 157422877. The next prime is 157422953. The reversal of 157422940 is 49224751.

It is a junction number, because it is equal to n+sod(n) for n = 157422896 and 157422905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18124 + ... + 25363.

It is an arithmetic number, because the mean of its divisors is an integer number (13850928).

Almost surely, 2^157422940 is an apocalyptic number.

157422940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157422940 is an abundant number, since it is smaller than the sum of its proper divisors (174999332).

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

157422940 is a wasteful number, since it uses less digits than its factorization.

157422940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43677 (or 43675 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 157422940 is about 12546.8298784992. The cubic root of 157422940 is about 539.9530594771.

The spelling of 157422940 in words is "one hundred fifty-seven million, four hundred twenty-two thousand, nine hundred forty".