42402244442 has 8 divisors (see below), whose sum is σ = 63807880032. Its totient is φ = 21132951100.

The previous prime is 42402244433. The next prime is 42402244483. The reversal of 42402244442 is 24444220424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 42402244399 and 42402244408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34084784 + ... + 34086027.

It is an arithmetic number, because the mean of its divisors is an integer number (7975985004).

Almost surely, 2^42402244442 is an apocalyptic number.

42402244442 is a deficient number, since it is larger than the sum of its proper divisors (21405635590).

42402244442 is a wasteful number, since it uses less digits than its factorization.

42402244442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68171124.

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 42402244442 its reverse (24444220424), we get a palindrome (66846464866).

The spelling of 42402244442 in words is "forty-two billion, four hundred two million, two hundred forty-four thousand, four hundred forty-two".