421057352 has 8 divisors (see below), whose sum is σ = 789482550. Its totient is φ = 210528672.

The previous prime is 421057321. The next prime is 421057367. The reversal of 421057352 is 253750124.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 401040676 + 20016676 = 20026^2 + 4474^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26316077 + ... + 26316092.

Almost surely, 2^421057352 is an apocalyptic number.

It is an amenable number.

421057352 is a deficient number, since it is larger than the sum of its proper divisors (368425198).

421057352 is a wasteful number, since it uses less digits than its factorization.

421057352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52632175 (or 52632171 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 421057352 is about 20519.6820638138. The cubic root of 421057352 is about 749.5151544858.

The spelling of 421057352 in words is "four hundred twenty-one million, fifty-seven thousand, three hundred fifty-two".