42404684 has 12 divisors (see below), whose sum is σ = 84809424. Its totient is φ = 18173424.

The previous prime is 42404653. The next prime is 42404689. The reversal of 42404684 is 48640424.

42404684 is an admirable number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 42404684.

It is not an unprimeable number, because it can be changed into a prime (42404689) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 757199 + ... + 757254.

It is an arithmetic number, because the mean of its divisors is an integer number (7067452).

Almost surely, 2^42404684 is an apocalyptic number.

It is an amenable number.

42404684 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42404684 is a wasteful number, since it uses less digits than its factorization.

42404684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514464 (or 1514462 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

The square root of 42404684 is about 6511.8878982980. The cubic root of 42404684 is about 348.7155203726.

The spelling of 42404684 in words is "forty-two million, four hundred four thousand, six hundred eighty-four".