402144443398 has 16 divisors (see below), whose sum is σ = 638780938560. Its totient is φ = 189220461696.

The previous prime is 402144443383. The next prime is 402144443413. The reversal of 402144443398 is 893344441204.

It is an interprime number because it is at equal distance from previous prime (402144443383) and next prime (402144443413).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 475758 + ... + 1015201.

It is an arithmetic number, because the mean of its divisors is an integer number (39923808660).

Almost surely, 2^402144443398 is an apocalyptic number.

402144443398 is a deficient number, since it is larger than the sum of its proper divisors (236636495162).

402144443398 is a wasteful number, since it uses less digits than its factorization.

402144443398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498911.

The product of its (nonzero) digits is 1327104, while the sum is 46.

The spelling of 402144443398 in words is "four hundred two billion, one hundred forty-four million, four hundred forty-three thousand, three hundred ninety-eight".