45642623 has 8 divisors (see below), whose sum is σ = 49234416. Its totient is φ = 42062400.

The previous prime is 45642581. The next prime is 45642629. The reversal of 45642623 is 32624654.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45642623 - 2⁸ = 45642367 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45642623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45642629) by changing a digit.

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, 6443 + ... + 11523.

It is an arithmetic number, because the mean of its divisors is an integer number (6154302).

Almost surely, 2^45642623 is an apocalyptic number.

45642623 is a deficient number, since it is larger than the sum of its proper divisors (3591793).

45642623 is a wasteful number, since it uses less digits than its factorization.

45642623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5785.

The product of its digits is 34560, while the sum is 32.

The square root of 45642623 is about 6755.9324300943. The cubic root of 45642623 is about 357.3744759571.

The spelling of 45642623 in words is "forty-five million, six hundred forty-two thousand, six hundred twenty-three".