402842444 has 6 divisors (see below), whose sum is σ = 704974284. Its totient is φ = 201421220.

The previous prime is 402842441. The next prime is 402842449. The reversal of 402842444 is 444248204.

It is a self number, because there is not a number n which added to its sum of digits gives 402842444.

It is not an unprimeable number, because it can be changed into a prime (402842441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50355302 + ... + 50355309.

It is an arithmetic number, because the mean of its divisors is an integer number (117495714).

Almost surely, 2^402842444 is an apocalyptic number.

It is an amenable number.

402842444 is a deficient number, since it is larger than the sum of its proper divisors (302131840).

402842444 is a wasteful number, since it uses less digits than its factorization.

402842444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100710615 (or 100710613 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 32.

The square root of 402842444 is about 20070.9353045642. The cubic root of 402842444 is about 738.5474574699.

The spelling of 402842444 in words is "four hundred two million, eight hundred forty-two thousand, four hundred forty-four".