421052444 has 24 divisors (see below), whose sum is σ = 770666400. Its totient is φ = 200904704.

The previous prime is 421052419. The next prime is 421052449. The reversal of 421052444 is 444250124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421052449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36212 + ... + 46404.

It is an arithmetic number, because the mean of its divisors is an integer number (32111100).

Almost surely, 2^421052444 is an apocalyptic number.

It is an amenable number.

421052444 is a deficient number, since it is larger than the sum of its proper divisors (349613956).

421052444 is a wasteful number, since it uses less digits than its factorization.

421052444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10669 (or 10667 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 421052444 is about 20519.5624709690. The cubic root of 421052444 is about 749.5122422660.

The spelling of 421052444 in words is "four hundred twenty-one million, fifty-two thousand, four hundred forty-four".