402230412 has 18 divisors (see below), whose sum is σ = 1016749188. Its totient is φ = 134076792.

The previous prime is 402230357. The next prime is 402230429. The reversal of 402230412 is 214032204.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5586498 + ... + 5586569.

It is an arithmetic number, because the mean of its divisors is an integer number (56486066).

Almost surely, 2^402230412 is an apocalyptic number.

It is an amenable number.

402230412 is an abundant number, since it is smaller than the sum of its proper divisors (614518776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402230412 is a wasteful number, since it uses less digits than its factorization.

402230412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11173077 (or 11173072 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 402230412 is about 20055.6827856845. The cubic root of 402230412 is about 738.1732468320.

Adding to 402230412 its reverse (214032204), we get a palindrome (616262616).

The spelling of 402230412 in words is "four hundred two million, two hundred thirty thousand, four hundred twelve".