402400011442 has 16 divisors (see below), whose sum is σ = 709124496192. Its totient is φ = 168839165520.

The previous prime is 402400011413. The next prime is 402400011451. The reversal of 402400011442 is 244110004204.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 703496238 + ... + 703496809.

It is an arithmetic number, because the mean of its divisors is an integer number (44320281012).

Almost surely, 2^402400011442 is an apocalyptic number.

402400011442 is a deficient number, since it is larger than the sum of its proper divisors (306724484750).

402400011442 is a wasteful number, since it uses less digits than its factorization.

402400011442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406993073.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 402400011442 its reverse (244110004204), we get a palindrome (646510015646).

The spelling of 402400011442 in words is "four hundred two billion, four hundred million, eleven thousand, four hundred forty-two".