421073672 has 16 divisors (see below), whose sum is σ = 790904400. Its totient is φ = 210165840.

The previous prime is 421073671. The next prime is 421073701. The reversal of 421073672 is 276370124.

It is not an unprimeable number, because it can be changed into a prime (421073671) 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, 41522 + ... + 50657.

It is an arithmetic number, because the mean of its divisors is an integer number (49431525).

Almost surely, 2^421073672 is an apocalyptic number.

It is an amenable number.

421073672 is a deficient number, since it is larger than the sum of its proper divisors (369830728).

421073672 is a wasteful number, since it uses less digits than its factorization.

421073672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92756 (or 92752 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 421073672 is about 20520.0797269406. The cubic root of 421073672 is about 749.5248379880.

The spelling of 421073672 in words is "four hundred twenty-one million, seventy-three thousand, six hundred seventy-two".