190431434242 has 16 divisors (see below), whose sum is σ = 326495074752. Its totient is φ = 81603174960.

The previous prime is 190431434239. The next prime is 190431434257. The reversal of 190431434242 is 242434134091.

It is a super-2 number, since 2×190431434242² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 742609 + ... + 965572.

It is an arithmetic number, because the mean of its divisors is an integer number (20405942172).

Almost surely, 2^190431434242 is an apocalyptic number.

190431434242 is a deficient number, since it is larger than the sum of its proper divisors (136063640510).

190431434242 is a wasteful number, since it uses less digits than its factorization.

190431434242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716153.

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 190431434242 in words is "one hundred ninety billion, four hundred thirty-one million, four hundred thirty-four thousand, two hundred forty-two".