33889988 has 12 divisors (see below), whose sum is σ = 64699152. Its totient is φ = 15404520.

The previous prime is 33889969. The next prime is 33889991. The reversal of 33889988 is 88998833.

It is a super-2 number, since 2×33889988² = 2297062573280288, which contains 22 as substring.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385070 + ... + 385157.

It is an arithmetic number, because the mean of its divisors is an integer number (5391596).

Almost surely, 2^33889988 is an apocalyptic number.

It is an amenable number.

33889988 is a deficient number, since it is larger than the sum of its proper divisors (30809164).

33889988 is a wasteful number, since it uses less digits than its factorization.

33889988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770242 (or 770240 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 56.

The square root of 33889988 is about 5821.5108004710. The cubic root of 33889988 is about 323.6113945820.

The spelling of 33889988 in words is "thirty-three million, eight hundred eighty-nine thousand, nine hundred eighty-eight".