45304623 has 32 divisors (see below), whose sum is σ = 82611200. Its totient is φ = 23895648.

The previous prime is 45304619. The next prime is 45304657. The reversal of 45304623 is 32640354.

45304623 is a `hidden beast` number, since 4 + 5 + 30 + 4 + 623 = 666.

It is not a de Polignac number, because 45304623 - 2² = 45304619 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45304223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6763 + ... + 11676.

It is an arithmetic number, because the mean of its divisors is an integer number (2581600).

Almost surely, 2^45304623 is an apocalyptic number.

45304623 is a deficient number, since it is larger than the sum of its proper divisors (37306577).

45304623 is a wasteful number, since it uses less digits than its factorization.

45304623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18468 (or 18462 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 45304623 is about 6730.8708946168. The cubic root of 45304623 is about 356.4901273045.

Adding to 45304623 its reverse (32640354), we get a palindrome (77944977).

The spelling of 45304623 in words is "forty-five million, three hundred four thousand, six hundred twenty-three".