320412402 has 32 divisors (see below), whose sum is σ = 742988160. Its totient is φ = 102160080.

The previous prime is 320412383. The next prime is 320412427. The reversal of 320412402 is 204214023.

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 15 ways as a sum of consecutive naturals, for example, 127749 + ... + 130232.

It is an arithmetic number, because the mean of its divisors is an integer number (23218380).

Almost surely, 2^320412402 is an apocalyptic number.

320412402 is an abundant number, since it is smaller than the sum of its proper divisors (422575758).

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

320412402 is a wasteful number, since it uses less digits than its factorization.

320412402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258015 (or 258009 counting only the distinct ones).

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

The square root of 320412402 is about 17900.0670948463. The cubic root of 320412402 is about 684.2840848267.

Adding to 320412402 its reverse (204214023), we get a palindrome (524626425).

It can be divided in two parts, 32041 and 2402, that added together give a palindrome (34443).

The spelling of 320412402 in words is "three hundred twenty million, four hundred twelve thousand, four hundred two".