40818872 has 8 divisors (see below), whose sum is σ = 76535400. Its totient is φ = 20409432.

The previous prime is 40818857. The next prime is 40818907. The reversal of 40818872 is 27881804.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×40818872² = 3332360622704768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2551172 + ... + 2551187.

It is an arithmetic number, because the mean of its divisors is an integer number (9566925).

Almost surely, 2^40818872 is an apocalyptic number.

It is an amenable number.

40818872 is a deficient number, since it is larger than the sum of its proper divisors (35716528).

40818872 is a wasteful number, since it uses less digits than its factorization.

40818872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5102365 (or 5102361 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 38.

The square root of 40818872 is about 6388.9648613840. The cubic root of 40818872 is about 344.3131950244.

The spelling of 40818872 in words is "forty million, eight hundred eighteen thousand, eight hundred seventy-two".