40067868 has 12 divisors (see below), whose sum is σ = 93491720. Its totient is φ = 13355952.

The previous prime is 40067857. The next prime is 40067893. The reversal of 40067868 is 86876004.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 1669483 + ... + 1669506.

Almost surely, 2^40067868 is an apocalyptic number.

It is an amenable number.

40067868 is an abundant number, since it is smaller than the sum of its proper divisors (53423852).

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

40067868 is a wasteful number, since it uses less digits than its factorization.

40067868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3338996 (or 3338994 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 40067868 is about 6329.9184828874. The cubic root of 40067868 is about 342.1885011251.

The spelling of 40067868 in words is "forty million, sixty-seven thousand, eight hundred sixty-eight".