45576321 has 12 divisors (see below), whose sum is σ = 70690032. Its totient is φ = 26043528.

The previous prime is 45576319. The next prime is 45576353. The reversal of 45576321 is 12367554.

It is not a de Polignac number, because 45576321 - 2¹ = 45576319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45576361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154875 + ... + 155168.

It is an arithmetic number, because the mean of its divisors is an integer number (5890836).

Almost surely, 2^45576321 is an apocalyptic number.

It is an amenable number.

45576321 is a deficient number, since it is larger than the sum of its proper divisors (25113711).

45576321 is a wasteful number, since it uses less digits than its factorization.

45576321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310060 (or 310053 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 45576321 is about 6751.0237001510. The cubic root of 45576321 is about 357.2013473956.

It can be divided in two parts, 4557 and 6321, that added together give a triangular number (10878 = T₁₄₇).

The spelling of 45576321 in words is "forty-five million, five hundred seventy-six thousand, three hundred twenty-one".