402044004432444 has 48 divisors (see below), whose sum is σ = 1023454442102400. Its totient is φ = 121823218453440.

The previous prime is 402044004432443. The next prime is 402044004432467. The reversal of 402044004432444 is 444234400440204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402044004432443) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 101780019 + ... + 105656330.

It is an arithmetic number, because the mean of its divisors is an integer number (21321967543800).

Almost surely, 2^{402044004432444} is an apocalyptic number.

402044004432444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

402044004432444 is an abundant number, since it is smaller than the sum of its proper divisors (621410437669956).

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

402044004432444 is a wasteful number, since it uses less digits than its factorization.

402044004432444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207451050 (or 207451048 counting only the distinct ones).

The product of its (nonzero) digits is 786432, while the sum is 39.

Adding to 402044004432444 its reverse (444234400440204), we get a palindrome (846278404872648).

The spelling of 402044004432444 in words is "four hundred two trillion, forty-four billion, four million, four hundred thirty-two thousand, four hundred forty-four".