157465840 has 40 divisors (see below), whose sum is σ = 418410720. Its totient is φ = 53988096.

The previous prime is 157465817. The next prime is 157465873. The reversal of 157465840 is 48564751.

157465840 = 108² + 109² + ... + 779².

157465840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 157465793 and 157465802.

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, 140035 + ... + 141154.

It is an arithmetic number, because the mean of its divisors is an integer number (10460268).

Almost surely, 2^157465840 is an apocalyptic number.

157465840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157465840 is an abundant number, since it is smaller than the sum of its proper divisors (260944880).

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

157465840 is a wasteful number, since it uses less digits than its factorization.

157465840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281209 (or 281203 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 157465840 is about 12548.5393572320. The cubic root of 157465840 is about 540.0021033297.

The spelling of 157465840 in words is "one hundred fifty-seven million, four hundred sixty-five thousand, eight hundred forty".