40520524 has 12 divisors (see below), whose sum is σ = 77357448. Its totient is φ = 18418400.

The previous prime is 40520507. The next prime is 40520561. The reversal of 40520524 is 42502504.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 40520495 and 40520504.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460417 + ... + 460504.

It is an arithmetic number, because the mean of its divisors is an integer number (6446454).

Almost surely, 2^40520524 is an apocalyptic number.

40520524 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40520524 is a deficient number, since it is larger than the sum of its proper divisors (36836924).

40520524 is a wasteful number, since it uses less digits than its factorization.

40520524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920936 (or 920934 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 40520524 is about 6365.5733441694. The cubic root of 40520524 is about 343.4722731304.

The spelling of 40520524 in words is "forty million, five hundred twenty thousand, five hundred twenty-four".