402042202442 has 32 divisors (see below), whose sum is σ = 640529155200. Its totient is φ = 188729352000.

The previous prime is 402042202433. The next prime is 402042202531. The reversal of 402042202442 is 244202240204.

It is a super-2 number, since 2×402042202442² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2332484 + ... + 2498912.

It is an arithmetic number, because the mean of its divisors is an integer number (20016536100).

Almost surely, 2^402042202442 is an apocalyptic number.

402042202442 is a deficient number, since it is larger than the sum of its proper divisors (238486952758).

402042202442 is a wasteful number, since it uses less digits than its factorization.

402042202442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167022.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 402042202442 its reverse (244202240204), we get a palindrome (646244442646).

The spelling of 402042202442 in words is "four hundred two billion, forty-two million, two hundred two thousand, four hundred forty-two".