42044400402 has 16 divisors (see below), whose sum is σ = 86361471552. Its totient is φ = 13636021680.

The previous prime is 42044400397. The next prime is 42044400449. The reversal of 42044400402 is 20400444024.

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, 94694374 + ... + 94694817.

It is an arithmetic number, because the mean of its divisors is an integer number (5397591972).

Almost surely, 2^42044400402 is an apocalyptic number.

42044400402 is an abundant number, since it is smaller than the sum of its proper divisors (44317071150).

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

42044400402 is a wasteful number, since it uses less digits than its factorization.

42044400402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189389233.

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

Adding to 42044400402 its reverse (20400444024), we get a palindrome (62444844426).

The spelling of 42044400402 in words is "forty-two billion, forty-four million, four hundred thousand, four hundred two".