42400334444442 has 32 divisors (see below), whose sum is σ = 91553832085632. Its totient is φ = 13013394634944.

The previous prime is 42400334444441. The next prime is 42400334444483. The reversal of 42400334444442 is 24444443300424.

It is a super-2 number, since 2×42400334444442² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42400334444394 and 42400334444403.

It is not an unprimeable number, because it can be changed into a prime (42400334444441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 684596278 + ... + 684658209.

It is an arithmetic number, because the mean of its divisors is an integer number (2861057252676).

Almost surely, 2^{42400334444442} is an apocalyptic number.

42400334444442 is an abundant number, since it is smaller than the sum of its proper divisors (49153497641190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42400334444442 is a wasteful number, since it uses less digits than its factorization.

42400334444442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369254902.

The product of its (nonzero) digits is 2359296, while the sum is 42.

Adding to 42400334444442 its reverse (24444443300424), we get a palindrome (66844777744866).

The spelling of 42400334444442 in words is "forty-two trillion, four hundred billion, three hundred thirty-four million, four hundred forty-four thousand, four hundred forty-two".