402344312 has 8 divisors (see below), whose sum is σ = 754395600. Its totient is φ = 201172152.

The previous prime is 402344309. The next prime is 402344339. The reversal of 402344312 is 213443204.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25146512 + ... + 25146527.

It is an arithmetic number, because the mean of its divisors is an integer number (94299450).

Almost surely, 2^402344312 is an apocalyptic number.

It is an amenable number.

402344312 is a deficient number, since it is larger than the sum of its proper divisors (352051288).

402344312 is a wasteful number, since it uses less digits than its factorization.

402344312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50293045 (or 50293041 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 402344312 is about 20058.5221788645. The cubic root of 402344312 is about 738.2429166825.

Adding to 402344312 its reverse (213443204), we get a palindrome (615787516).

The spelling of 402344312 in words is "four hundred two million, three hundred forty-four thousand, three hundred twelve".