421988270 has 16 divisors (see below), whose sum is σ = 828631728. Its totient is φ = 153450240.

The previous prime is 421988243. The next prime is 421988299. The reversal of 421988270 is 72889124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1918019 + ... + 1918238.

It is an arithmetic number, because the mean of its divisors is an integer number (51789483).

Almost surely, 2^421988270 is an apocalyptic number.

421988270 is a deficient number, since it is larger than the sum of its proper divisors (406643458).

421988270 is a wasteful number, since it uses less digits than its factorization.

421988270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3836275.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 421988270 is about 20542.3530784572. The cubic root of 421988270 is about 750.0671169565.

The spelling of 421988270 in words is "four hundred twenty-one million, nine hundred eighty-eight thousand, two hundred seventy".