152811840 has 56 divisors (see below), whose sum is σ = 485180640. Its totient is φ = 40749568.

The previous prime is 152811811. The next prime is 152811853. The reversal of 152811840 is 48118251.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 152811798 and 152811807.

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, 78630 + ... + 80549.

It is an arithmetic number, because the mean of its divisors is an integer number (8663940).

Almost surely, 2^152811840 is an apocalyptic number.

152811840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152811840 is an abundant number, since it is smaller than the sum of its proper divisors (332368800).

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

152811840 is a wasteful number, since it uses less digits than its factorization.

152811840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159199 (or 159189 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 30.

The square root of 152811840 is about 12361.7086197661. The cubic root of 152811840 is about 534.6287814097.

The spelling of 152811840 in words is "one hundred fifty-two million, eight hundred eleven thousand, eight hundred forty".