421506044 has 6 divisors (see below), whose sum is σ = 737635584. Its totient is φ = 210753020.

The previous prime is 421506037. The next prime is 421506131. The reversal of 421506044 is 440605124.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52688252 + ... + 52688259.

It is an arithmetic number, because the mean of its divisors is an integer number (122939264).

Almost surely, 2^421506044 is an apocalyptic number.

It is an amenable number.

421506044 is a deficient number, since it is larger than the sum of its proper divisors (316129540).

421506044 is a wasteful number, since it uses less digits than its factorization.

421506044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105376515 (or 105376513 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 421506044 is about 20530.6123630056. The cubic root of 421506044 is about 749.7812956381.

The spelling of 421506044 in words is "four hundred twenty-one million, five hundred six thousand, forty-four".