33139400 has 48 divisors (see below), whose sum is σ = 88059840. Its totient is φ = 11361600.

The previous prime is 33139399. The next prime is 33139411. The reversal of 33139400 is 493133.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10436 + ... + 13235.

It is an arithmetic number, because the mean of its divisors is an integer number (1834580).

Almost surely, 2^33139400 is an apocalyptic number.

It is an amenable number.

33139400 is an abundant number, since it is smaller than the sum of its proper divisors (54920440).

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

33139400 is a wasteful number, since it uses less digits than its factorization.

33139400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23694 (or 23685 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 33139400 is about 5756.6830727425. The cubic root of 33139400 is about 321.2044452859.

The spelling of 33139400 in words is "thirty-three million, one hundred thirty-nine thousand, four hundred".