42322403402 has 4 divisors (see below), whose sum is σ = 63483605106. Its totient is φ = 21161201700.

The previous prime is 42322403399. The next prime is 42322403407. The reversal of 42322403402 is 20430422324.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22680661201 + 19641742201 = 150601^2 + 140149^2 .

It is not an unprimeable number, because it can be changed into a prime (42322403407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10580600849 + ... + 10580600852.

Almost surely, 2^42322403402 is an apocalyptic number.

42322403402 is a deficient number, since it is larger than the sum of its proper divisors (21161201704).

42322403402 is a wasteful number, since it uses less digits than its factorization.

42322403402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21161201703.

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

Adding to 42322403402 its reverse (20430422324), we get a palindrome (62752825726).

The spelling of 42322403402 in words is "forty-two billion, three hundred twenty-two million, four hundred three thousand, four hundred two".