45520320 has 56 divisors (see below), whose sum is σ = 144530064. Its totient is φ = 12138496.

The previous prime is 45520297. The next prime is 45520327. The reversal of 45520320 is 2302554.

It is a super-3 number, since 3×45520320³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45520327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22749 + ... + 24668.

It is an arithmetic number, because the mean of its divisors is an integer number (2580894).

Almost surely, 2^45520320 is an apocalyptic number.

45520320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45520320 is an abundant number, since it is smaller than the sum of its proper divisors (99009744).

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

45520320 is a wasteful number, since it uses less digits than its factorization.

45520320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47437 (or 47427 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 45520320 is about 6746.8748320982. The cubic root of 45520320 is about 357.0549860773.

Adding to 45520320 its reverse (2302554), we get a palindrome (47822874).

The spelling of 45520320 in words is "forty-five million, five hundred twenty thousand, three hundred twenty".