421451044 has 12 divisors (see below), whose sum is σ = 842902144. Its totient is φ = 180621864.

The previous prime is 421451003. The next prime is 421451047. The reversal of 421451044 is 440154124.

421451044 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (421451047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7525884 + ... + 7525939.

Almost surely, 2^421451044 is an apocalyptic number.

It is an amenable number.

421451044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

421451044 is a wasteful number, since it uses less digits than its factorization.

421451044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15051834 (or 15051832 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 421451044 is about 20529.2728560950. The cubic root of 421451044 is about 749.7486826103.

The spelling of 421451044 in words is "four hundred twenty-one million, four hundred fifty-one thousand, forty-four".