40724680 has 32 divisors (see below), whose sum is σ = 92259000. Its totient is φ = 16178176.

The previous prime is 40724659. The next prime is 40724681. The reversal of 40724680 is 8642704.

It can be written as a sum of positive squares in 4 ways, for example, as 15984004 + 24740676 = 3998^2 + 4974^2 .

It is a super-2 number, since 2×40724680² = 3316999122204800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40724681) 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, 2544 + ... + 9376.

Almost surely, 2^40724680 is an apocalyptic number.

40724680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40724680 is an abundant number, since it is smaller than the sum of its proper divisors (51534320).

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

40724680 is a wasteful number, since it uses less digits than its factorization.

40724680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6993 (or 6989 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 40724680 is about 6381.5891437792. The cubic root of 40724680 is about 344.0481499214.

The spelling of 40724680 in words is "forty million, seven hundred twenty-four thousand, six hundred eighty".