45403312 has 40 divisors (see below), whose sum is σ = 93141360. Its totient is φ = 21381120.

The previous prime is 45403297. The next prime is 45403321. The reversal of 45403312 is 21330454.

It is a super-2 number, since 2×45403312² = 4122921481138688, which contains 22 as substring.

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, 70512 + ... + 71152.

It is an arithmetic number, because the mean of its divisors is an integer number (2328534).

Almost surely, 2^45403312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45403312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46570680).

45403312 is an abundant number, since it is smaller than the sum of its proper divisors (47738048).

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

45403312 is a wasteful number, since it uses less digits than its factorization.

45403312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901 (or 895 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 45403312 is about 6738.1979786884. The cubic root of 45403312 is about 356.7487921443.

Adding to 45403312 its reverse (21330454), we get a palindrome (66733766).

The spelling of 45403312 in words is "forty-five million, four hundred three thousand, three hundred twelve".