42864402 has 32 divisors (see below), whose sum is σ = 98243712. Its totient is φ = 12213504.

The previous prime is 42864337. The next prime is 42864443. The reversal of 42864402 is 20446824.

It is a self number, because there is not a number n which added to its sum of digits gives 42864402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17008 + ... + 19364.

It is an arithmetic number, because the mean of its divisors is an integer number (3070116).

Almost surely, 2^42864402 is an apocalyptic number.

42864402 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

42864402 is an abundant number, since it is smaller than the sum of its proper divisors (55379310).

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

42864402 is a wasteful number, since it uses less digits than its factorization.

42864402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802.

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 42864402 is about 6547.0911097983. The cubic root of 42864402 is about 349.9711595283.

The spelling of 42864402 in words is "forty-two million, eight hundred sixty-four thousand, four hundred two".