42042214402 has 4 divisors (see below), whose sum is σ = 63063321606. Its totient is φ = 21021107200.

The previous prime is 42042214393. The next prime is 42042214421. The reversal of 42042214402 is 20441224024.

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., 21217126921 + 20825087481 = 145661^2 + 144309^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10510553599 + ... + 10510553602.

Almost surely, 2^42042214402 is an apocalyptic number.

42042214402 is a deficient number, since it is larger than the sum of its proper divisors (21021107204).

42042214402 is a wasteful number, since it uses less digits than its factorization.

42042214402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21021107203.

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 42042214402 its reverse (20441224024), we get a palindrome (62483438426).

The spelling of 42042214402 in words is "forty-two billion, forty-two million, two hundred fourteen thousand, four hundred two".