42857404 has 12 divisors (see below), whose sum is σ = 75055624. Its totient is φ = 21412944.

The previous prime is 42857401. The next prime is 42857411. The reversal of 42857404 is 40475824.

It is a happy number.

It is a hoax number, since the sum of its digits (34) 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 42857404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42857401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3922 + ... + 10054.

Almost surely, 2^42857404 is an apocalyptic number.

It is an amenable number.

42857404 is a deficient number, since it is larger than the sum of its proper divisors (32198220).

42857404 is a wasteful number, since it uses less digits than its factorization.

42857404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7884 (or 7882 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 42857404 is about 6546.5566521646. The cubic root of 42857404 is about 349.9521131763.

The spelling of 42857404 in words is "forty-two million, eight hundred fifty-seven thousand, four hundred four".