40024520 has 32 divisors (see below), whose sum is σ = 90357120. Its totient is φ = 15956160.

The previous prime is 40024519. The next prime is 40024541. The reversal of 40024520 is 2542004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11729 + ... + 14751.

It is an arithmetic number, because the mean of its divisors is an integer number (2823660).

Almost surely, 2^40024520 is an apocalyptic number.

40024520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40024520 is an abundant number, since it is smaller than the sum of its proper divisors (50332600).

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

40024520 is a wasteful number, since it uses less digits than its factorization.

40024520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3365 (or 3361 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 40024520 is about 6326.4934995620. The cubic root of 40024520 is about 342.0650560782.

Adding to 40024520 its reverse (2542004), we get a palindrome (42566524).

The spelling of 40024520 in words is "forty million, twenty-four thousand, five hundred twenty".