234809136 has 30 divisors (see below), whose sum is σ = 657139860. Its totient is φ = 78269664.

The previous prime is 234809129. The next prime is 234809149. The reversal of 234809136 is 631908432.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 234809136.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 815166 + ... + 815453.

It is an arithmetic number, because the mean of its divisors is an integer number (21904662).

Almost surely, 2^234809136 is an apocalyptic number.

It is an amenable number.

234809136 is an abundant number, since it is smaller than the sum of its proper divisors (422330724).

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

234809136 is a wasteful number, since it uses less digits than its factorization.

234809136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630633 (or 1630624 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 234809136 is about 15323.4831549488. The cubic root of 234809136 is about 616.9334669565.

The spelling of 234809136 in words is "two hundred thirty-four million, eight hundred nine thousand, one hundred thirty-six".