40406680 has 16 divisors (see below), whose sum is σ = 90915120. Its totient is φ = 16162656.

The previous prime is 40406677. The next prime is 40406687. The reversal of 40406680 is 8660404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40406687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505044 + ... + 505123.

It is an arithmetic number, because the mean of its divisors is an integer number (5682195).

Almost surely, 2^40406680 is an apocalyptic number.

40406680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40406680 is an abundant number, since it is smaller than the sum of its proper divisors (50508440).

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

40406680 is a wasteful number, since it uses less digits than its factorization.

40406680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010178 (or 1010174 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 40406680 is about 6356.6248906161. The cubic root of 40406680 is about 343.1503051444.

The spelling of 40406680 in words is "forty million, four hundred six thousand, six hundred eighty".