45422921 has 4 divisors (see below), whose sum is σ = 46479312. Its totient is φ = 44366532.

The previous prime is 45422917. The next prime is 45422933. The reversal of 45422921 is 12922454.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45422921 - 2² = 45422917 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45422941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528131 + ... + 528216.

It is an arithmetic number, because the mean of its divisors is an integer number (11619828).

Almost surely, 2^45422921 is an apocalyptic number.

It is an amenable number.

45422921 is a deficient number, since it is larger than the sum of its proper divisors (1056391).

45422921 is a wasteful number, since it uses less digits than its factorization.

45422921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056390.

The product of its digits is 5760, while the sum is 29.

The square root of 45422921 is about 6739.6528842367. The cubic root of 45422921 is about 356.8001428785.

The spelling of 45422921 in words is "forty-five million, four hundred twenty-two thousand, nine hundred twenty-one".