402400412 has 12 divisors (see below), whose sum is σ = 706467216. Its totient is φ = 200552640.

The previous prime is 402400399. The next prime is 402400441. The reversal of 402400412 is 214004204.

It is a super-3 number, since 3×402400412³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160493 + ... + 162980.

It is an arithmetic number, because the mean of its divisors is an integer number (58872268).

Almost surely, 2^402400412 is an apocalyptic number.

It is an amenable number.

402400412 is a deficient number, since it is larger than the sum of its proper divisors (304066804).

402400412 is a wasteful number, since it uses less digits than its factorization.

402400412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323788 (or 323786 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 402400412 is about 20059.9205382275. The cubic root of 402400412 is about 738.2772268505.

Adding to 402400412 its reverse (214004204), we get a palindrome (616404616).

The spelling of 402400412 in words is "four hundred two million, four hundred thousand, four hundred twelve".