40818672 has 30 divisors (see below), whose sum is σ = 114235992. Its totient is φ = 13606176.

The previous prime is 40818671. The next prime is 40818677. The reversal of 40818672 is 27681804.

40818672 is a `hidden beast` number, since 408 + 186 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40818671) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 141588 + ... + 141875.

Almost surely, 2^40818672 is an apocalyptic number.

It is an amenable number.

40818672 is an abundant number, since it is smaller than the sum of its proper divisors (73417320).

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

40818672 is a wasteful number, since it uses less digits than its factorization.

40818672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283477 (or 283468 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 40818672 is about 6388.9492093771. The cubic root of 40818672 is about 344.3126326804.

The spelling of 40818672 in words is "forty million, eight hundred eighteen thousand, six hundred seventy-two".