402344444 has 6 divisors (see below), whose sum is σ = 704102784. Its totient is φ = 201172220.

The previous prime is 402344441. The next prime is 402344461. The reversal of 402344444 is 444443204.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402344441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50293052 + ... + 50293059.

It is an arithmetic number, because the mean of its divisors is an integer number (117350464).

Almost surely, 2^402344444 is an apocalyptic number.

It is an amenable number.

402344444 is a deficient number, since it is larger than the sum of its proper divisors (301758340).

402344444 is a wasteful number, since it uses less digits than its factorization.

402344444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100586115 (or 100586113 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 29.

The square root of 402344444 is about 20058.5254692363. The cubic root of 402344444 is about 738.2429974160.

Adding to 402344444 its reverse (444443204), we get a palindrome (846787648).

The spelling of 402344444 in words is "four hundred two million, three hundred forty-four thousand, four hundred forty-four".