42400868 has 24 divisors (see below), whose sum is σ = 77656320. Its totient is φ = 20218880.

The previous prime is 42400861. The next prime is 42400889. The reversal of 42400868 is 86800424.

42400868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (42400861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58613 + ... + 59331.

It is an arithmetic number, because the mean of its divisors is an integer number (3235680).

Almost surely, 2^42400868 is an apocalyptic number.

It is an amenable number.

42400868 is a deficient number, since it is larger than the sum of its proper divisors (35255452).

42400868 is a wasteful number, since it uses less digits than its factorization.

42400868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387 (or 1385 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 42400868 is about 6511.5948891189. The cubic root of 42400868 is about 348.7050597488.

The spelling of 42400868 in words is "forty-two million, four hundred thousand, eight hundred sixty-eight".