40413816 has 48 divisors (see below), whose sum is σ = 113513400. Its totient is φ = 13470624.

The previous prime is 40413799. The next prime is 40413827. The reversal of 40413816 is 61831404.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 40413816.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8451 + ... + 12338.

Almost surely, 2^40413816 is an apocalyptic number.

It is an amenable number.

40413816 is an abundant number, since it is smaller than the sum of its proper divisors (73099584).

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

40413816 is a wasteful number, since it uses less digits than its factorization.

40413816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20810 (or 20794 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 40413816 is about 6357.1861699969. The cubic root of 40413816 is about 343.1705045804.

The spelling of 40413816 in words is "forty million, four hundred thirteen thousand, eight hundred sixteen".