45323020 has 24 divisors (see below), whose sum is σ = 100777824. Its totient is φ = 17062656.

The previous prime is 45323009. The next prime is 45323029. The reversal of 45323020 is 2032354.

It is a super-2 number, since 2×45323020² = 4108352283840800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45323029) 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, 66312 + ... + 66991.

It is an arithmetic number, because the mean of its divisors is an integer number (4199076).

Almost surely, 2^45323020 is an apocalyptic number.

It is an amenable number.

45323020 is an abundant number, since it is smaller than the sum of its proper divisors (55454804).

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

45323020 is a wasteful number, since it uses less digits than its factorization.

45323020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133329 (or 133327 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 45323020 is about 6732.2373695526. The cubic root of 45323020 is about 356.5383744878.

Adding to 45323020 its reverse (2032354), we get a palindrome (47355374).

The spelling of 45323020 in words is "forty-five million, three hundred twenty-three thousand, twenty".