45320372 has 6 divisors (see below), whose sum is σ = 79310658. Its totient is φ = 22660184.

The previous prime is 45320369. The next prime is 45320381. The reversal of 45320372 is 27302354.

It can be written as a sum of positive squares in only one way, i.e., 26275876 + 19044496 = 5126^2 + 4364^2 .

It is a super-2 number, since 2×45320372² = 4107872236436768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5665043 + ... + 5665050.

It is an arithmetic number, because the mean of its divisors is an integer number (13218443).

Almost surely, 2^45320372 is an apocalyptic number.

It is an amenable number.

45320372 is a deficient number, since it is larger than the sum of its proper divisors (33990286).

45320372 is a wasteful number, since it uses less digits than its factorization.

45320372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11330097 (or 11330095 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 45320372 is about 6732.0407010059. The cubic root of 45320372 is about 356.5314307610.

The spelling of 45320372 in words is "forty-five million, three hundred twenty thousand, three hundred seventy-two".