42000402400404 has 72 divisors (see below), whose sum is σ = 114123807483840. Its totient is φ = 11987197576704.

The previous prime is 42000402400379. The next prime is 42000402400409. The reversal of 42000402400404 is 40400420400024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42000402400409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37897912 + ... + 38990415.

It is an arithmetic number, because the mean of its divisors is an integer number (1585052881720).

Almost surely, 2^{42000402400404} is an apocalyptic number.

It is an amenable number.

42000402400404 is an abundant number, since it is smaller than the sum of its proper divisors (72123405083436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42000402400404 is a wasteful number, since it uses less digits than its factorization.

42000402400404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76889277 (or 76889268 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 42000402400404 its reverse (40400420400024), we get a palindrome (82400822800428).

The spelling of 42000402400404 in words is "forty-two trillion, four hundred two million, four hundred thousand, four hundred four".