33729968 has 10 divisors (see below), whose sum is σ = 65351844. Its totient is φ = 16864976.

The previous prime is 33729967. The next prime is 33729979. The reversal of 33729968 is 86992733.

It is a super-2 number, since 2×33729968² = 2275421482562048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33729961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054046 + ... + 1054077.

Almost surely, 2^33729968 is an apocalyptic number.

It is an amenable number.

33729968 is a deficient number, since it is larger than the sum of its proper divisors (31621876).

33729968 is a wasteful number, since it uses less digits than its factorization.

33729968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108131 (or 2108125 counting only the distinct ones).

The product of its digits is 489888, while the sum is 47.

The square root of 33729968 is about 5807.7506833541. The cubic root of 33729968 is about 323.1012536127.

The spelling of 33729968 in words is "thirty-three million, seven hundred twenty-nine thousand, nine hundred sixty-eight".