421564492 has 6 divisors (see below), whose sum is σ = 737737868. Its totient is φ = 210782244.

The previous prime is 421564439. The next prime is 421564529. The reversal of 421564492 is 294465124.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52695558 + ... + 52695565.

Almost surely, 2^421564492 is an apocalyptic number.

It is an amenable number.

421564492 is a deficient number, since it is larger than the sum of its proper divisors (316173376).

421564492 is a wasteful number, since it uses less digits than its factorization.

421564492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105391127 (or 105391125 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 421564492 is about 20532.0357490435. The cubic root of 421564492 is about 749.8159500971.

The spelling of 421564492 in words is "four hundred twenty-one million, five hundred sixty-four thousand, four hundred ninety-two".