402331412 has 12 divisors (see below), whose sum is σ = 804662880. Its totient is φ = 172427736.

The previous prime is 402331411. The next prime is 402331453. The reversal of 402331412 is 214133204.

402331412 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402331411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7184462 + ... + 7184517.

It is an arithmetic number, because the mean of its divisors is an integer number (67055240).

Almost surely, 2^402331412 is an apocalyptic number.

It is an amenable number.

402331412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

402331412 is a wasteful number, since it uses less digits than its factorization.

402331412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14368990 (or 14368988 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 402331412 is about 20058.2006172039. The cubic root of 402331412 is about 738.2350267276.

Adding to 402331412 its reverse (214133204), we get a palindrome (616464616).

The spelling of 402331412 in words is "four hundred two million, three hundred thirty-one thousand, four hundred twelve".