421534492 has 6 divisors (see below), whose sum is σ = 737685368. Its totient is φ = 210767244.

The previous prime is 421534457. The next prime is 421534511. The reversal of 421534492 is 294435124.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52691808 + ... + 52691815.

Almost surely, 2^421534492 is an apocalyptic number.

It is an amenable number.

421534492 is a deficient number, since it is larger than the sum of its proper divisors (316150876).

421534492 is a wasteful number, since it uses less digits than its factorization.

421534492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105383627 (or 105383625 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 421534492 is about 20531.3051703977. The cubic root of 421534492 is about 749.7981631689.

The spelling of 421534492 in words is "four hundred twenty-one million, five hundred thirty-four thousand, four hundred ninety-two".