45446321 has 16 divisors (see below), whose sum is σ = 51300864. Its totient is φ = 40026624.

The previous prime is 45446267. The next prime is 45446329. The reversal of 45446321 is 12364454.

It is not a de Polignac number, because 45446321 - 2⁶ = 45446257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45446329) 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, 17141 + ... + 19613.

It is an arithmetic number, because the mean of its divisors is an integer number (3206304).

Almost surely, 2^45446321 is an apocalyptic number.

It is an amenable number.

45446321 is a deficient number, since it is larger than the sum of its proper divisors (5854543).

45446321 is a wasteful number, since it uses less digits than its factorization.

45446321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560.

The product of its digits is 11520, while the sum is 29.

The square root of 45446321 is about 6741.3886551659. The cubic root of 45446321 is about 356.8614018924.

The spelling of 45446321 in words is "forty-five million, four hundred forty-six thousand, three hundred twenty-one".