402442400404 has 12 divisors (see below), whose sum is σ = 768299128128. Its totient is φ = 182928363800.

The previous prime is 402442400357. The next prime is 402442400431. The reversal of 402442400404 is 404004244204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4573209052 + ... + 4573209139.

It is an arithmetic number, because the mean of its divisors is an integer number (64024927344).

Almost surely, 2^402442400404 is an apocalyptic number.

402442400404 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

402442400404 is a deficient number, since it is larger than the sum of its proper divisors (365856727724).

402442400404 is a wasteful number, since it uses less digits than its factorization.

402442400404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9146418206 (or 9146418204 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 402442400404 its reverse (404004244204), we get a palindrome (806446644608).

The spelling of 402442400404 in words is "four hundred two billion, four hundred forty-two million, four hundred thousand, four hundred four".