42469864 has 16 divisors (see below), whose sum is σ = 83822400. Its totient is φ = 20117232.

The previous prime is 42469841. The next prime is 42469873. The reversal of 42469864 is 46896424.

It is a self number, because there is not a number n which added to its sum of digits gives 42469864.

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, 139552 + ... + 139855.

It is an arithmetic number, because the mean of its divisors is an integer number (5238900).

Almost surely, 2^42469864 is an apocalyptic number.

It is an amenable number.

42469864 is a deficient number, since it is larger than the sum of its proper divisors (41352536).

42469864 is a wasteful number, since it uses less digits than its factorization.

42469864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279432 (or 279428 counting only the distinct ones).

The product of its digits is 331776, while the sum is 43.

The square root of 42469864 is about 6516.8906696369. The cubic root of 42469864 is about 348.8940984582.

The spelling of 42469864 in words is "forty-two million, four hundred sixty-nine thousand, eight hundred sixty-four".