421672084 has 12 divisors (see below), whose sum is σ = 738410400. Its totient is φ = 210697688.

The previous prime is 421672079. The next prime is 421672099. The reversal of 421672084 is 480276124.

It is a happy number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 27574 + ... + 40045.

It is an arithmetic number, because the mean of its divisors is an integer number (61534200).

Almost surely, 2^421672084 is an apocalyptic number.

It is an amenable number.

421672084 is a deficient number, since it is larger than the sum of its proper divisors (316738316).

421672084 is a wasteful number, since it uses less digits than its factorization.

421672084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69182 (or 69180 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 421672084 is about 20534.6556825285. The cubic root of 421672084 is about 749.8797341974.

The spelling of 421672084 in words is "four hundred twenty-one million, six hundred seventy-two thousand, eighty-four".