40424168 has 32 divisors (see below), whose sum is σ = 77421960. Its totient is φ = 19783680.

The previous prime is 40424149. The next prime is 40424177. The reversal of 40424168 is 86142404.

It can be written as a sum of positive squares in 4 ways, for example, as 18164644 + 22259524 = 4262^2 + 4718^2 .

It is a super-2 number, since 2×40424168² = 3268226716984448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40424168.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87458 + ... + 87918.

Almost surely, 2^40424168 is an apocalyptic number.

It is an amenable number.

40424168 is a deficient number, since it is larger than the sum of its proper divisors (36997792).

40424168 is a wasteful number, since it uses less digits than its factorization.

40424168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 40424168 is about 6358.0003145643. Note that the first 3 decimals coincide. The cubic root of 40424168 is about 343.1998031235.

The spelling of 40424168 in words is "forty million, four hundred twenty-four thousand, one hundred sixty-eight".