421470684 has 18 divisors (see below), whose sum is σ = 1065384320. Its totient is φ = 140490216.

The previous prime is 421470661. The next prime is 421470701. The reversal of 421470684 is 486074124.

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 11707519 = 421470684 / (4 + 2 + 1 + 4 + 7 + 0 + 6 + 8 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5853724 + ... + 5853795.

Almost surely, 2^421470684 is an apocalyptic number.

It is an amenable number.

421470684 is an abundant number, since it is smaller than the sum of its proper divisors (643913636).

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

421470684 is a wasteful number, since it uses less digits than its factorization.

421470684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11707529 (or 11707524 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 421470684 is about 20529.7511918679. The cubic root of 421470684 is about 749.7603287517.

The spelling of 421470684 in words is "four hundred twenty-one million, four hundred seventy thousand, six hundred eighty-four".