42404236402 has 16 divisors (see below), whose sum is σ = 69691766400. Its totient is φ = 19190481840.

The previous prime is 42404236393. The next prime is 42404236403. The reversal of 42404236402 is 20463240424.

It is not an unprimeable number, because it can be changed into a prime (42404236403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4203402 + ... + 4213477.

It is an arithmetic number, because the mean of its divisors is an integer number (4355735400).

Almost surely, 2^42404236402 is an apocalyptic number.

42404236402 is a deficient number, since it is larger than the sum of its proper divisors (27287529998).

42404236402 is a wasteful number, since it uses less digits than its factorization.

42404236402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8417121.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 42404236402 its reverse (20463240424), we get a palindrome (62867476826).

The spelling of 42404236402 in words is "forty-two billion, four hundred four million, two hundred thirty-six thousand, four hundred two".