45939930 has 16 divisors (see below), whose sum is σ = 110255904. Its totient is φ = 12250640.

The previous prime is 45939913. The next prime is 45939961. The reversal of 45939930 is 3993954.

It is a happy number.

It is a super-2 number, since 2×45939930² = 4220954336809800, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 765636 + ... + 765695.

It is an arithmetic number, because the mean of its divisors is an integer number (6890994).

Almost surely, 2^45939930 is an apocalyptic number.

45939930 is an abundant number, since it is smaller than the sum of its proper divisors (64315974).

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

45939930 is a wasteful number, since it uses less digits than its factorization.

45939930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531341.

The product of its (nonzero) digits is 131220, while the sum is 42.

The square root of 45939930 is about 6777.9001172930. The cubic root of 45939930 is about 358.1487527228.

The spelling of 45939930 in words is "forty-five million, nine hundred thirty-nine thousand, nine hundred thirty".