42444420402 has 16 divisors (see below), whose sum is σ = 85397159232. Its totient is φ = 14063420400.

The previous prime is 42444420383. The next prime is 42444420437. The reversal of 42444420402 is 20402444424.

42444420402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 42444420402.

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, 21178849 + ... + 21180852.

It is an arithmetic number, because the mean of its divisors is an integer number (5337322452).

Almost surely, 2^42444420402 is an apocalyptic number.

42444420402 is an abundant number, since it is smaller than the sum of its proper divisors (42952738830).

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

42444420402 is a wasteful number, since it uses less digits than its factorization.

42444420402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42359873.

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 42444420402 its reverse (20402444424), we get a palindrome (62846864826).

The spelling of 42444420402 in words is "forty-two billion, four hundred forty-four million, four hundred twenty thousand, four hundred two".