45442645 has 16 divisors (see below), whose sum is σ = 55440000. Its totient is φ = 35754048.

The previous prime is 45442643. The next prime is 45442651. The reversal of 45442645 is 54624454.

It is a cyclic number.

It is not a de Polignac number, because 45442645 - 2¹ = 45442643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45442645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45442643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108246 + ... + 108664.

It is an arithmetic number, because the mean of its divisors is an integer number (3465000).

Almost surely, 2^45442645 is an apocalyptic number.

It is an amenable number.

45442645 is a deficient number, since it is larger than the sum of its proper divisors (9997355).

45442645 is a wasteful number, since it uses less digits than its factorization.

45442645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732.

The product of its digits is 76800, while the sum is 34.

The square root of 45442645 is about 6741.1160055291. The cubic root of 45442645 is about 356.8517798603.

The spelling of 45442645 in words is "forty-five million, four hundred forty-two thousand, six hundred forty-five".