105404134442 has 32 divisors (see below), whose sum is σ = 165583360512. Its totient is φ = 50226701184.

The previous prime is 105404134441. The next prime is 105404134481. The reversal of 105404134442 is 244431404501.

It is a super-2 number, since 2×105404134442² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105404134399 and 105404134408.

It is not an unprimeable number, because it can be changed into a prime (105404134441) 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, 24189728 + ... + 24194084.

It is an arithmetic number, because the mean of its divisors is an integer number (5174480016).

Almost surely, 2^105404134442 is an apocalyptic number.

105404134442 is a deficient number, since it is larger than the sum of its proper divisors (60179226070).

105404134442 is a wasteful number, since it uses less digits than its factorization.

105404134442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6182.

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 105404134442 its reverse (244431404501), we get a palindrome (349835538943).

The spelling of 105404134442 in words is "one hundred five billion, four hundred four million, one hundred thirty-four thousand, four hundred forty-two".