421853674 has 72 divisors (see below), whose sum is σ = 767224332. Its totient is φ = 173184000.

The previous prime is 421853639. The next prime is 421853699. The reversal of 421853674 is 476358124.

It can be written as a sum of positive squares in 6 ways, for example, as 1890625 + 419963049 = 1375^2 + 20493^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6915604 + ... + 6915664.

Almost surely, 2^421853674 is an apocalyptic number.

421853674 is a deficient number, since it is larger than the sum of its proper divisors (345370658).

421853674 is a wasteful number, since it uses less digits than its factorization.

421853674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184 (or 132 counting only the distinct ones).

The product of its digits is 161280, while the sum is 40.

The square root of 421853674 is about 20539.0767562712. The cubic root of 421853674 is about 749.9873621574.

The spelling of 421853674 in words is "four hundred twenty-one million, eight hundred fifty-three thousand, six hundred seventy-four".