402230432 has 12 divisors (see below), whose sum is σ = 791891226. Its totient is φ = 201115200.

The previous prime is 402230431. The next prime is 402230449. The reversal of 402230432 is 234032204.

It can be written as a sum of positive squares in only one way, i.e., 387144976 + 15085456 = 19676^2 + 3884^2 .

It is not an unprimeable number, because it can be changed into a prime (402230431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6284819 + ... + 6284882.

Almost surely, 2^402230432 is an apocalyptic number.

It is an amenable number.

402230432 is a deficient number, since it is larger than the sum of its proper divisors (389660794).

402230432 is a wasteful number, since it uses less digits than its factorization.

402230432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12569711 (or 12569703 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 402230432 is about 20055.6832842962. The cubic root of 402230432 is about 738.1732590667.

Adding to 402230432 its reverse (234032204), we get a palindrome (636262636).

The spelling of 402230432 in words is "four hundred two million, two hundred thirty thousand, four hundred thirty-two".