402334444 has 12 divisors (see below), whose sum is σ = 745502184. Its totient is φ = 189333824.

The previous prime is 402334441. The next prime is 402334447. The reversal of 402334444 is 444433204.

It is an interprime number because it is at equal distance from previous prime (402334441) and next prime (402334447).

It is not an unprimeable number, because it can be changed into a prime (402334441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2958274 + ... + 2958409.

It is an arithmetic number, because the mean of its divisors is an integer number (62125182).

Almost surely, 2^402334444 is an apocalyptic number.

It is an amenable number.

402334444 is a deficient number, since it is larger than the sum of its proper divisors (343167740).

402334444 is a wasteful number, since it uses less digits than its factorization.

402334444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5916704 (or 5916702 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

The square root of 402334444 is about 20058.2761971212. The cubic root of 402334444 is about 738.2368811880.

Adding to 402334444 its reverse (444433204), we get a palindrome (846767648).

The spelling of 402334444 in words is "four hundred two million, three hundred thirty-four thousand, four hundred forty-four".