42000404343402 has 32 divisors (see below), whose sum is σ = 84882748833792. Its totient is φ = 13853896624944.

The previous prime is 42000404343379. The next prime is 42000404343439. The reversal of 42000404343402 is 20434340400024.

It is a self number, because there is not a number n which added to its sum of digits gives 42000404343402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93759898 + ... + 94206789.

It is an arithmetic number, because the mean of its divisors is an integer number (2652585901056).

Almost surely, 2^{42000404343402} is an apocalyptic number.

42000404343402 is an abundant number, since it is smaller than the sum of its proper divisors (42882344490390).

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

42000404343402 is a wasteful number, since it uses less digits than its factorization.

42000404343402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187967082.

The product of its (nonzero) digits is 36864, while the sum is 30.

Adding to 42000404343402 its reverse (20434340400024), we get a palindrome (62434744743426).

The spelling of 42000404343402 in words is "forty-two trillion, four hundred four million, three hundred forty-three thousand, four hundred two".