45639326 has 4 divisors (see below), whose sum is σ = 68458992. Its totient is φ = 22819662.

The previous prime is 45639323. The next prime is 45639343. The reversal of 45639326 is 62393654.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62393654 = 2 ⋅31196827.

It is a self number, because there is not a number n which added to its sum of digits gives 45639326.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45639323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11409830 + ... + 11409833.

It is an arithmetic number, because the mean of its divisors is an integer number (17114748).

Almost surely, 2^45639326 is an apocalyptic number.

45639326 is a deficient number, since it is larger than the sum of its proper divisors (22819666).

45639326 is a wasteful number, since it uses less digits than its factorization.

45639326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22819665.

The product of its digits is 116640, while the sum is 38.

The square root of 45639326 is about 6755.6884179186. The cubic root of 45639326 is about 357.3658707547.

The spelling of 45639326 in words is "forty-five million, six hundred thirty-nine thousand, three hundred twenty-six".