45945912 has 64 divisors (see below), whose sum is σ = 120022560. Its totient is φ = 14643200.

The previous prime is 45945877. The next prime is 45945919. The reversal of 45945912 is 21954954.

It is a super-2 number, since 2×45945912² = 4222053659023488, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45945919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51712 + ... + 52592.

Almost surely, 2^45945912 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 45945912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60011280).

45945912 is an abundant number, since it is smaller than the sum of its proper divisors (74076648).

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

45945912 is a wasteful number, since it uses less digits than its factorization.

45945912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984 (or 980 counting only the distinct ones).

The product of its digits is 64800, while the sum is 39.

The square root of 45945912 is about 6778.3413900452. The cubic root of 45945912 is about 358.1642973181.

The spelling of 45945912 in words is "forty-five million, nine hundred forty-five thousand, nine hundred twelve".