420031232 has 36 divisors (see below), whose sum is σ = 839765136. Its totient is φ = 209679360.

The previous prime is 420031231. The next prime is 420031247. The reversal of 420031232 is 232130024.

It is a self number, because there is not a number n which added to its sum of digits gives 420031232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420031231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260573 + ... + 262179.

Almost surely, 2^420031232 is an apocalyptic number.

It is an amenable number.

420031232 is a deficient number, since it is larger than the sum of its proper divisors (419733904).

420031232 is a wasteful number, since it uses less digits than its factorization.

420031232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2644 (or 2630 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 420031232 is about 20494.6635005311. The cubic root of 420031232 is about 748.9058011556.

Adding to 420031232 its reverse (232130024), we get a palindrome (652161256).

The spelling of 420031232 in words is "four hundred twenty million, thirty-one thousand, two hundred thirty-two".