40416920 has 16 divisors (see below), whose sum is σ = 90938160. Its totient is φ = 16166752.

The previous prime is 40416919. The next prime is 40416931. The reversal of 40416920 is 2961404.

It is a self number, because there is not a number n which added to its sum of digits gives 40416920.

It is a congruent number.

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, 505172 + ... + 505251.

It is an arithmetic number, because the mean of its divisors is an integer number (5683635).

Almost surely, 2^40416920 is an apocalyptic number.

40416920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40416920 is an abundant number, since it is smaller than the sum of its proper divisors (50521240).

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

40416920 is a wasteful number, since it uses less digits than its factorization.

40416920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010434 (or 1010430 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 40416920 is about 6357.4302984775. The cubic root of 40416920 is about 343.1792901401.

The spelling of 40416920 in words is "forty million, four hundred sixteen thousand, nine hundred twenty".