45501912 has 160 divisors (see below), whose sum is σ = 137998080. Its totient is φ = 13970880.

The previous prime is 45501901. The next prime is 45501917. The reversal of 45501912 is 21910554.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45501917) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 640837 + ... + 640907.

It is an arithmetic number, because the mean of its divisors is an integer number (862488).

Almost surely, 2^45501912 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 45501912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68999040).

45501912 is an abundant number, since it is smaller than the sum of its proper divisors (92496168).

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

45501912 is a wasteful number, since it uses less digits than its factorization.

45501912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 45501912 is about 6745.5105069965. The cubic root of 45501912 is about 357.0068496673.

The spelling of 45501912 in words is "forty-five million, five hundred one thousand, nine hundred twelve".