189261742 has 4 divisors (see below), whose sum is σ = 283892616. Its totient is φ = 94630870.

The previous prime is 189261719. The next prime is 189261767. The reversal of 189261742 is 247162981.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 189261695 and 189261704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47315434 + ... + 47315437.

It is an arithmetic number, because the mean of its divisors is an integer number (70973154).

Almost surely, 2^189261742 is an apocalyptic number.

189261742 is a deficient number, since it is larger than the sum of its proper divisors (94630874).

189261742 is an equidigital number, since it uses as much as digits as its factorization.

189261742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94630873.

The product of its digits is 48384, while the sum is 40.

The square root of 189261742 is about 13757.2432558271. The cubic root of 189261742 is about 574.1441503226.

The spelling of 189261742 in words is "one hundred eighty-nine million, two hundred sixty-one thousand, seven hundred forty-two".