421007346 has 48 divisors (see below), whose sum is σ = 967673304. Its totient is φ = 131830272.

The previous prime is 421007287. The next prime is 421007369. The reversal of 421007346 is 643700124.

It can be written as a sum of positive squares in 4 ways, for example, as 413105625 + 7901721 = 20325^2 + 2811^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 223360 + ... + 225236.

Almost surely, 2^421007346 is an apocalyptic number.

421007346 is an abundant number, since it is smaller than the sum of its proper divisors (546665958).

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

421007346 is a wasteful number, since it uses less digits than its factorization.

421007346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2635 (or 2632 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 421007346 is about 20518.4635389690. The cubic root of 421007346 is about 749.4854817754.

The spelling of 421007346 in words is "four hundred twenty-one million, seven thousand, three hundred forty-six".