33730906 has 16 divisors (see below), whose sum is σ = 55336608. Its totient is φ = 15293200.

The previous prime is 33730901. The next prime is 33730919. The reversal of 33730906 is 60903733.

It is a happy number.

It is a super-2 number, since 2×33730906² = 2275548039161672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33730901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8016 + ... + 11476.

It is an arithmetic number, because the mean of its divisors is an integer number (3458538).

Almost surely, 2^33730906 is an apocalyptic number.

33730906 is a deficient number, since it is larger than the sum of its proper divisors (21605702).

33730906 is a wasteful number, since it uses less digits than its factorization.

33730906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3917.

The product of its (nonzero) digits is 10206, while the sum is 31.

The square root of 33730906 is about 5807.8314369479. The cubic root of 33730906 is about 323.1042486365.

The spelling of 33730906 in words is "thirty-three million, seven hundred thirty thousand, nine hundred six".