421639496 has 32 divisors (see below), whose sum is σ = 828178560. Its totient is φ = 200863872.

The previous prime is 421639487. The next prime is 421639513. The reversal of 421639496 is 694936124.

It is a happy number.

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, 44036 + ... + 52748.

It is an arithmetic number, because the mean of its divisors is an integer number (25880580).

Almost surely, 2^421639496 is an apocalyptic number.

421639496 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

421639496 is a deficient number, since it is larger than the sum of its proper divisors (406539064).

421639496 is a wasteful number, since it uses less digits than its factorization.

421639496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9005 (or 9001 counting only the distinct ones).

The product of its digits is 279936, while the sum is 44.

The square root of 421639496 is about 20533.8621793368. The cubic root of 421639496 is about 749.8604160975.

The spelling of 421639496 in words is "four hundred twenty-one million, six hundred thirty-nine thousand, four hundred ninety-six".