420690232 has 16 divisors (see below), whose sum is σ = 805577760. Its totient is φ = 205869504.

The previous prime is 420690227. The next prime is 420690233. The reversal of 420690232 is 232096024.

It is a self number, because there is not a number n which added to its sum of digits gives 420690232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420690233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559053 + ... + 559804.

It is an arithmetic number, because the mean of its divisors is an integer number (50348610).

Almost surely, 2^420690232 is an apocalyptic number.

It is an amenable number.

420690232 is a deficient number, since it is larger than the sum of its proper divisors (384887528).

420690232 is a wasteful number, since it uses less digits than its factorization.

420690232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118910 (or 1118906 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 420690232 is about 20510.7345553493. The cubic root of 420690232 is about 749.2972570013.

The spelling of 420690232 in words is "four hundred twenty million, six hundred ninety thousand, two hundred thirty-two".