128878324 has 24 divisors (see below), whose sum is σ = 232138368. Its totient is φ = 62574720.

The previous prime is 128878313. The next prime is 128878339. The reversal of 128878324 is 423878821.

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, 22012 + ... + 27244.

It is an arithmetic number, because the mean of its divisors is an integer number (9672432).

Almost surely, 2^128878324 is an apocalyptic number.

It is an amenable number.

128878324 is a deficient number, since it is larger than the sum of its proper divisors (103260044).

128878324 is a wasteful number, since it uses less digits than its factorization.

128878324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5415 (or 5413 counting only the distinct ones).

The product of its digits is 172032, while the sum is 43.

The square root of 128878324 is about 11352.4589406877. The cubic root of 128878324 is about 505.1185213432.

The spelling of 128878324 in words is "one hundred twenty-eight million, eight hundred seventy-eight thousand, three hundred twenty-four".