421332504 has 32 divisors (see below), whose sum is σ = 1059430320. Its totient is φ = 139630976.

The previous prime is 421332481. The next prime is 421332529. The reversal of 421332504 is 405233124.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 in 7 ways as a sum of consecutive naturals, for example, 46587 + ... + 54890.

Almost surely, 2^421332504 is an apocalyptic number.

It is an amenable number.

421332504 is an abundant number, since it is smaller than the sum of its proper divisors (638097816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421332504 is a wasteful number, since it uses less digits than its factorization.

421332504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101659 (or 101655 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 421332504 is about 20526.3855561567. The cubic root of 421332504 is about 749.6783829919.

Adding to 421332504 its reverse (405233124), we get a palindrome (826565628).

The spelling of 421332504 in words is "four hundred twenty-one million, three hundred thirty-two thousand, five hundred four".