40216556 has 12 divisors (see below), whose sum is σ = 71062992. Its totient is φ = 19912848.

The previous prime is 40216541. The next prime is 40216619. The reversal of 40216556 is 65561204.

It is a super-2 number, since 2×40216556² = 3234742753002272, which contains 22 as substring.

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, 48395 + ... + 49218.

It is an arithmetic number, because the mean of its divisors is an integer number (5921916).

Almost surely, 2^40216556 is an apocalyptic number.

It is an amenable number.

40216556 is a deficient number, since it is larger than the sum of its proper divisors (30846436).

40216556 is a wasteful number, since it uses less digits than its factorization.

40216556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97720 (or 97718 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 40216556 is about 6341.6524660375. The cubic root of 40216556 is about 342.6112548155.

The spelling of 40216556 in words is "forty million, two hundred sixteen thousand, five hundred fifty-six".