402144444010 has 16 divisors (see below), whose sum is σ = 766439999496. Its totient is φ = 151395555328.

The previous prime is 402144443999. The next prime is 402144444019. The reversal of 402144444010 is 10444441204.

It can be written as a sum of positive squares in 4 ways, for example, as 377945841529 + 24198602481 = 614773^2 + 155559^2 .

It is a super-2 number, since 2×402144444010² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 402144444010.

It is not an unprimeable number, because it can be changed into a prime (402144444019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1182777607 + ... + 1182777946.

Almost surely, 2^402144444010 is an apocalyptic number.

402144444010 is a deficient number, since it is larger than the sum of its proper divisors (364295555486).

402144444010 is a wasteful number, since it uses less digits than its factorization.

402144444010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365555577.

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 402144444010 its reverse (10444441204), we get a palindrome (412588885214).

The spelling of 402144444010 in words is "four hundred two billion, one hundred forty-four million, four hundred forty-four thousand, ten".