45724878 has 16 divisors (see below), whose sum is σ = 101610960. Its totient is φ = 15241608.

The previous prime is 45724873. The next prime is 45724879. The reversal of 45724878 is 87842754.

45724878 is a `hidden beast` number, since 4 + 572 + 4 + 8 + 78 = 666.

It is a super-2 number, since 2×45724878² = 4181528936229768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45724873) 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, 423325 + ... + 423432.

It is an arithmetic number, because the mean of its divisors is an integer number (6350685).

Almost surely, 2^45724878 is an apocalyptic number.

45724878 is an abundant number, since it is smaller than the sum of its proper divisors (55886082).

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

45724878 is a wasteful number, since it uses less digits than its factorization.

45724878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846768 (or 846762 counting only the distinct ones).

The product of its digits is 501760, while the sum is 45.

The square root of 45724878 is about 6762.0173025511. The cubic root of 45724878 is about 357.5890283107.

The spelling of 45724878 in words is "forty-five million, seven hundred twenty-four thousand, eight hundred seventy-eight".