402544445204 has 96 divisors (see below), whose sum is σ = 841138421760. Its totient is φ = 166420108800.

The previous prime is 402544445197. The next prime is 402544445207.

402544445204 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402544445207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16845737 + ... + 16869615.

It is an arithmetic number, because the mean of its divisors is an integer number (8761858560).

Almost surely, 2^402544445204 is an apocalyptic number.

402544445204 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

402544445204 is an abundant number, since it is smaller than the sum of its proper divisors (438593976556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402544445204 is a wasteful number, since it uses less digits than its factorization.

402544445204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24669 (or 24667 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 38.

It can be divided in two parts, 402544 and 445204, that added together give a palindrome (847748).

The spelling of 402544445204 in words is "four hundred two billion, five hundred forty-four million, four hundred forty-five thousand, two hundred four".