45307320 has 32 divisors (see below), whose sum is σ = 135922320. Its totient is φ = 12081920.

The previous prime is 45307313. The next prime is 45307349. The reversal of 45307320 is 2370354.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188661 + ... + 188900.

Almost surely, 2^45307320 is an apocalyptic number.

45307320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45307320 is an abundant number, since it is smaller than the sum of its proper divisors (90615000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45307320 is a wasteful number, since it uses less digits than its factorization.

45307320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377575 (or 377571 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 45307320 is about 6731.0712371806. The cubic root of 45307320 is about 356.4972011580.

Adding to 45307320 its reverse (2370354), we get a palindrome (47677674).

The spelling of 45307320 in words is "forty-five million, three hundred seven thousand, three hundred twenty".