402144332104 has 16 divisors (see below), whose sum is σ = 772411370220. Its totient is φ = 196167966720.

The previous prime is 402144332069. The next prime is 402144332113. The reversal of 402144332104 is 401233441204.

It can be written as a sum of positive squares in 2 ways, for example, as 376993544004 + 25150788100 = 613998^2 + 158590^2 .

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, 613024569 + ... + 613025224.

Almost surely, 2^402144332104 is an apocalyptic number.

It is an amenable number.

402144332104 is a deficient number, since it is larger than the sum of its proper divisors (370267038116).

402144332104 is a wasteful number, since it uses less digits than its factorization.

402144332104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226049840 (or 1226049836 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 402144332104 its reverse (401233441204), we get a palindrome (803377773308).

The spelling of 402144332104 in words is "four hundred two billion, one hundred forty-four million, three hundred thirty-two thousand, one hundred four".