42220343402 has 8 divisors (see below), whose sum is σ = 63957550212. Its totient is φ = 20901160000.

The previous prime is 42220343383. The next prime is 42220343447. The reversal of 42220343402 is 20434302224.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30474335761 + 11746007641 = 174569^2 + 108379^2 .

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

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, 104505599 + ... + 104506002.

Almost surely, 2^42220343402 is an apocalyptic number.

42220343402 is a deficient number, since it is larger than the sum of its proper divisors (21737206810).

42220343402 is a wasteful number, since it uses less digits than its factorization.

42220343402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209011704.

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 42220343402 its reverse (20434302224), we get a palindrome (62654645626).

The spelling of 42220343402 in words is "forty-two billion, two hundred twenty million, three hundred forty-three thousand, four hundred two".