157723040 has 48 divisors (see below), whose sum is σ = 384652800. Its totient is φ = 61052160.

The previous prime is 157723001. The next prime is 157723043. The reversal of 157723040 is 40327751.

It is a junction number, because it is equal to n+sod(n) for n = 157722994 and 157723012.

It is not an unprimeable number, because it can be changed into a prime (157723043) 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, 10940 + ... + 20859.

It is an arithmetic number, because the mean of its divisors is an integer number (8013600).

Almost surely, 2^157723040 is an apocalyptic number.

157723040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157723040 is an abundant number, since it is smaller than the sum of its proper divisors (226929760).

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

157723040 is a wasteful number, since it uses less digits than its factorization.

157723040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31845 (or 31837 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 157723040 is about 12558.7833805668. The cubic root of 157723040 is about 540.2959511694.

The spelling of 157723040 in words is "one hundred fifty-seven million, seven hundred twenty-three thousand, forty".