189610738 has 8 divisors (see below), whose sum is σ = 284496732. Its totient is φ = 94778496.

The previous prime is 189610717. The next prime is 189610739. The reversal of 189610738 is 837016981.

It can be written as a sum of positive squares in 2 ways, for example, as 187060329 + 2550409 = 13677^2 + 1597^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 189610694 and 189610703.

It is not an unprimeable number, because it can be changed into a prime (189610739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2995 + ... + 19702.

Almost surely, 2^189610738 is an apocalyptic number.

189610738 is a deficient number, since it is larger than the sum of its proper divisors (94885994).

189610738 is a wasteful number, since it uses less digits than its factorization.

189610738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26876.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 189610738 is about 13769.9214957820. The cubic root of 189610738 is about 574.4968382166.

The spelling of 189610738 in words is "one hundred eighty-nine million, six hundred ten thousand, seven hundred thirty-eight".