155788460 has 48 divisors (see below), whose sum is σ = 332815392. Its totient is φ = 61248000.

The previous prime is 155788447. The next prime is 155788483. The reversal of 155788460 is 64887551.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 470495 + ... + 470825.

It is an arithmetic number, because the mean of its divisors is an integer number (6933654).

Almost surely, 2^155788460 is an apocalyptic number.

155788460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155788460 is an abundant number, since it is smaller than the sum of its proper divisors (177026932).

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

155788460 is a wasteful number, since it uses less digits than its factorization.

155788460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674 (or 672 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 44.

The square root of 155788460 is about 12481.5247466005. The cubic root of 155788460 is about 538.0778253293.

Subtracting from 155788460 its reverse (64887551), we obtain a palindrome (90900909).

The spelling of 155788460 in words is "one hundred fifty-five million, seven hundred eighty-eight thousand, four hundred sixty".