42401200442 has 24 divisors (see below), whose sum is σ = 66639508320. Its totient is φ = 20232420120.

The previous prime is 42401200423. The next prime is 42401200459. The reversal of 42401200442 is 24400210424.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 418817 + ... + 510107.

It is an arithmetic number, because the mean of its divisors is an integer number (2776646180).

Almost surely, 2^42401200442 is an apocalyptic number.

42401200442 is a deficient number, since it is larger than the sum of its proper divisors (24238307878).

42401200442 is a wasteful number, since it uses less digits than its factorization.

42401200442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91778 (or 91755 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 42401200442 its reverse (24400210424), we get a palindrome (66801410866).

The spelling of 42401200442 in words is "forty-two billion, four hundred one million, two hundred thousand, four hundred forty-two".