155864384 has 28 divisors (see below), whose sum is σ = 333086964. Its totient is φ = 71937024.

The previous prime is 155864377. The next prime is 155864389. The reversal of 155864384 is 483468551.

It can be written as a sum of positive squares in 2 ways, for example, as 18318400 + 137545984 = 4280^2 + 11728^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155864389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92837 + ... + 94500.

It is an arithmetic number, because the mean of its divisors is an integer number (11895963).

Almost surely, 2^155864384 is an apocalyptic number.

It is an amenable number.

155864384 is an abundant number, since it is smaller than the sum of its proper divisors (177222580).

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

155864384 is a wasteful number, since it uses less digits than its factorization.

155864384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187362 (or 187352 counting only the distinct ones).

The product of its digits is 460800, while the sum is 44.

The square root of 155864384 is about 12484.5658314577. The cubic root of 155864384 is about 538.1652224446.

The spelling of 155864384 in words is "one hundred fifty-five million, eight hundred sixty-four thousand, three hundred eighty-four".