421452544 has 18 divisors (see below), whose sum is σ = 841259300. Its totient is φ = 210726144.

The previous prime is 421452523. The next prime is 421452553. The reversal of 421452544 is 445254124.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 822894 + ... + 823405.

Almost surely, 2^421452544 is an apocalyptic number.

It is an amenable number.

421452544 is a deficient number, since it is larger than the sum of its proper divisors (419806756).

421452544 is an equidigital number, since it uses as much as digits as its factorization.

421452544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646315 (or 1646301 counting only the distinct ones).

The product of its digits is 25600, while the sum is 31.

The square root of 421452544 is about 20529.3093892610. The cubic root of 421452544 is about 749.7495720942.

The spelling of 421452544 in words is "four hundred twenty-one million, four hundred fifty-two thousand, five hundred forty-four".