45423872 has 36 divisors (see below), whose sum is σ = 97652100. Its totient is φ = 20963328.

The previous prime is 45423871. The next prime is 45423887. The reversal of 45423872 is 27832454.

It can be written as a sum of positive squares in 2 ways, for example, as 5683456 + 39740416 = 2384^2 + 6304^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45423871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3497 + ... + 10152.

Almost surely, 2^45423872 is an apocalyptic number.

It is an amenable number.

45423872 is an abundant number, since it is smaller than the sum of its proper divisors (52228228).

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

45423872 is a wasteful number, since it uses less digits than its factorization.

45423872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13678 (or 13664 counting only the distinct ones).

The product of its digits is 53760, while the sum is 35.

The square root of 45423872 is about 6739.7234364624. The cubic root of 45423872 is about 356.8026329178.

The spelling of 45423872 in words is "forty-five million, four hundred twenty-three thousand, eight hundred seventy-two".