189726342 has 32 divisors (see below), whose sum is σ = 414408960. Its totient is φ = 57553440.

The previous prime is 189726337. The next prime is 189726349. The reversal of 189726342 is 243627981.

It is a junction number, because it is equal to n+sod(n) for n = 189726294 and 189726303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189726349) 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 15 ways as a sum of consecutive naturals, for example, 11592 + ... + 22667.

It is an arithmetic number, because the mean of its divisors is an integer number (12950280).

Almost surely, 2^189726342 is an apocalyptic number.

189726342 is an abundant number, since it is smaller than the sum of its proper divisors (224682618).

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

189726342 is a wasteful number, since it uses less digits than its factorization.

189726342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34348.

The product of its digits is 145152, while the sum is 42.

The square root of 189726342 is about 13774.1185561908. The cubic root of 189726342 is about 574.6135697203.

The spelling of 189726342 in words is "one hundred eighty-nine million, seven hundred twenty-six thousand, three hundred forty-two".