421267724 has 24 divisors (see below), whose sum is σ = 769993728. Its totient is φ = 201286800.

The previous prime is 421267657. The next prime is 421267733. The reversal of 421267724 is 427762124.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178319 + ... + 180665.

It is an arithmetic number, because the mean of its divisors is an integer number (32083072).

Almost surely, 2^421267724 is an apocalyptic number.

It is an amenable number.

421267724 is a deficient number, since it is larger than the sum of its proper divisors (348726004).

421267724 is a wasteful number, since it uses less digits than its factorization.

421267724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4325 (or 4323 counting only the distinct ones).

The product of its digits is 37632, while the sum is 35.

The square root of 421267724 is about 20524.8075265031. The cubic root of 421267724 is about 749.6399599299.

The spelling of 421267724 in words is "four hundred twenty-one million, two hundred sixty-seven thousand, seven hundred twenty-four".