421971048 has 24 divisors (see below), whose sum is σ = 1142838450. Its totient is φ = 140656992.

The previous prime is 421971037. The next prime is 421971061. The reversal of 421971048 is 840179124.

It can be written as a sum of positive squares in only one way, i.e., 421809444 + 161604 = 20538^2 + 402^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2930283 + ... + 2930426.

Almost surely, 2^421971048 is an apocalyptic number.

It is an amenable number.

421971048 is an abundant number, since it is smaller than the sum of its proper divisors (720867402).

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

421971048 is a wasteful number, since it uses less digits than its factorization.

421971048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5860721 (or 5860714 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 421971048 is about 20541.9338914329. The cubic root of 421971048 is about 750.0569130144.

The spelling of 421971048 in words is "four hundred twenty-one million, nine hundred seventy-one thousand, forty-eight".