190440835442 has 48 divisors (see below), whose sum is σ = 338363124120. Its totient is φ = 79853579520.

The previous prime is 190440835441. The next prime is 190440835471. The reversal of 190440835442 is 244538044091.

It can be written as a sum of positive squares in 4 ways, for example, as 86059502881 + 104381332561 = 293359^2 + 323081^2 .

It is a junction number, because it is equal to n+sod(n) for n = 190440835393 and 190440835402.

It is not an unprimeable number, because it can be changed into a prime (190440835441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5055734 + ... + 5093262.

Almost surely, 2^190440835442 is an apocalyptic number.

190440835442 is a deficient number, since it is larger than the sum of its proper divisors (147922288678).

190440835442 is a wasteful number, since it uses less digits than its factorization.

190440835442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39179 (or 39168 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 44.

The spelling of 190440835442 in words is "one hundred ninety billion, four hundred forty million, eight hundred thirty-five thousand, four hundred forty-two".