402230032 has 20 divisors (see below), whose sum is σ = 779673436. Its totient is φ = 201024000.

The previous prime is 402230009. The next prime is 402230033. The reversal of 402230032 is 230032204.

It can be written as a sum of positive squares in 2 ways, for example, as 130507776 + 271722256 = 11424^2 + 16484^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 402229988 and 402230015.

It is not an unprimeable number, because it can be changed into a prime (402230033) 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, 43828 + ... + 52204.

Almost surely, 2^402230032 is an apocalyptic number.

It is an amenable number.

402230032 is a deficient number, since it is larger than the sum of its proper divisors (377443404).

402230032 is a wasteful number, since it uses less digits than its factorization.

402230032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11386 (or 11380 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 402230032 is about 20055.6733120581. The cubic root of 402230032 is about 738.1730143733.

Adding to 402230032 its reverse (230032204), we get a palindrome (632262236).

The spelling of 402230032 in words is "four hundred two million, two hundred thirty thousand, thirty-two".