402000044 has 6 divisors (see below), whose sum is σ = 703500084. Its totient is φ = 201000020.

The previous prime is 402000031. The next prime is 402000047. The reversal of 402000044 is 440000204.

It is a junction number, because it is equal to n+sod(n) for n = 401999992 and 402000028.

It is not an unprimeable number, because it can be changed into a prime (402000047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50250002 + ... + 50250009.

It is an arithmetic number, because the mean of its divisors is an integer number (117250014).

Almost surely, 2^402000044 is an apocalyptic number.

It is an amenable number.

402000044 is a deficient number, since it is larger than the sum of its proper divisors (301500040).

402000044 is a wasteful number, since it uses less digits than its factorization.

402000044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100500015 (or 100500013 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 402000044 is about 20049.9387530237. The cubic root of 402000044 is about 738.0322961364.

Adding to 402000044 its reverse (440000204), we get a palindrome (842000248).

The spelling of 402000044 in words is "four hundred two million, forty-four", and thus it is an aban number.