45204638 has 4 divisors (see below), whose sum is σ = 67806960. Its totient is φ = 22602318.

The previous prime is 45204631. The next prime is 45204659. The reversal of 45204638 is 83640254.

45204638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×45204638² = 4086918593422088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45204631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11301158 + ... + 11301161.

It is an arithmetic number, because the mean of its divisors is an integer number (16951740).

Almost surely, 2^45204638 is an apocalyptic number.

45204638 is a deficient number, since it is larger than the sum of its proper divisors (22602322).

45204638 is a wasteful number, since it uses less digits than its factorization.

45204638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22602321.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 45204638 is about 6723.4394471877. The cubic root of 45204638 is about 356.2276822789.

The spelling of 45204638 in words is "forty-five million, two hundred four thousand, six hundred thirty-eight".