402142443344 has 80 divisors (see below), whose sum is σ = 801282196800. Its totient is φ = 195443837952.

The previous prime is 402142443341. The next prime is 402142443347. The reversal of 402142443344 is 443344241204.

It is an interprime number because it is at equal distance from previous prime (402142443341) and next prime (402142443347).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402142443341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57470054 + ... + 57477050.

It is an arithmetic number, because the mean of its divisors is an integer number (10016027460).

Almost surely, 2^402142443344 is an apocalyptic number.

It is an amenable number.

402142443344 is a deficient number, since it is larger than the sum of its proper divisors (399139753456).

402142443344 is a wasteful number, since it uses less digits than its factorization.

402142443344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7740 (or 7734 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 402142443344 its reverse (443344241204), we get a palindrome (845486684548).

The spelling of 402142443344 in words is "four hundred two billion, one hundred forty-two million, four hundred forty-three thousand, three hundred forty-four".