189071742 has 16 divisors (see below), whose sum is σ = 379218960. Its totient is φ = 62844672.

The previous prime is 189071737. The next prime is 189071749. The reversal of 189071742 is 247170981.

It is a self number, because there is not a number n which added to its sum of digits gives 189071742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189071749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42517 + ... + 46752.

It is an arithmetic number, because the mean of its divisors is an integer number (23701185).

Almost surely, 2^189071742 is an apocalyptic number.

189071742 is an abundant number, since it is smaller than the sum of its proper divisors (190147218).

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

189071742 is a wasteful number, since it uses less digits than its factorization.

189071742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89627.

The product of its (nonzero) digits is 28224, while the sum is 39.

The square root of 189071742 is about 13750.3360686203. The cubic root of 189071742 is about 573.9519580846.

The spelling of 189071742 in words is "one hundred eighty-nine million, seventy-one thousand, seven hundred forty-two".