189610742 has 4 divisors (see below), whose sum is σ = 284416116. Its totient is φ = 94805370.

The previous prime is 189610739. The next prime is 189610763. The reversal of 189610742 is 247016981.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 189610696 and 189610705.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 47402684 + ... + 47402687.

It is an arithmetic number, because the mean of its divisors is an integer number (71104029).

Almost surely, 2^189610742 is an apocalyptic number.

189610742 is a deficient number, since it is larger than the sum of its proper divisors (94805374).

189610742 is an equidigital number, since it uses as much as digits as its factorization.

189610742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94805373.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 189610742 is about 13769.9216410261. The cubic root of 189610742 is about 574.4968422564.

The spelling of 189610742 in words is "one hundred eighty-nine million, six hundred ten thousand, seven hundred forty-two".