421309612 has 6 divisors (see below), whose sum is σ = 737291828. Its totient is φ = 210654804.

The previous prime is 421309597. The next prime is 421309613. The reversal of 421309612 is 216903124.

It is not an unprimeable number, because it can be changed into a prime (421309613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52663698 + ... + 52663705.

Almost surely, 2^421309612 is an apocalyptic number.

It is an amenable number.

421309612 is a deficient number, since it is larger than the sum of its proper divisors (315982216).

421309612 is a wasteful number, since it uses less digits than its factorization.

421309612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105327407 (or 105327405 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 421309612 is about 20525.8279248366. The cubic root of 421309612 is about 749.6648054744.

The spelling of 421309612 in words is "four hundred twenty-one million, three hundred nine thousand, six hundred twelve".