402441332404 has 12 divisors (see below), whose sum is σ = 705350854404. Its totient is φ = 200912516864.

The previous prime is 402441332387. The next prime is 402441332429. The reversal of 402441332404 is 404233144204.

It can be written as a sum of positive squares in 2 ways, for example, as 214787756304 + 187653576100 = 463452^2 + 433190^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77034397 + ... + 77039620.

It is an arithmetic number, because the mean of its divisors is an integer number (58779237867).

Almost surely, 2^402441332404 is an apocalyptic number.

It is an amenable number.

402441332404 is a deficient number, since it is larger than the sum of its proper divisors (302909522000).

402441332404 is a wasteful number, since it uses less digits than its factorization.

402441332404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154074674 (or 154074672 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 402441332404 its reverse (404233144204), we get a palindrome (806674476608).

The spelling of 402441332404 in words is "four hundred two billion, four hundred forty-one million, three hundred thirty-two thousand, four hundred four".