33945130 has 16 divisors (see below), whose sum is σ = 62592264. Its totient is φ = 13246720.

The previous prime is 33945083. The next prime is 33945133. The reversal of 33945130 is 3154933.

It can be written as a sum of positive squares in 4 ways, for example, as 25130169 + 8814961 = 5013^2 + 2969^2 .

It is not an unprimeable number, because it can be changed into a prime (33945133) 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, 40987 + ... + 41806.

Almost surely, 2^33945130 is an apocalyptic number.

33945130 is a deficient number, since it is larger than the sum of its proper divisors (28647134).

33945130 is a wasteful number, since it uses less digits than its factorization.

33945130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82841.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 33945130 is about 5826.2449313430. The cubic root of 33945130 is about 323.7868142371.

The spelling of 33945130 in words is "thirty-three million, nine hundred forty-five thousand, one hundred thirty".