189610942 has 16 divisors (see below), whose sum is σ = 306358272. Its totient is φ = 87757560.

The previous prime is 189610909. The next prime is 189610963. The reversal of 189610942 is 249016981.

It is a super-2 number, since 2×189610942² = 71904618652254728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 189610895 and 189610904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65058 + ... + 67909.

It is an arithmetic number, because the mean of its divisors is an integer number (19147392).

Almost surely, 2^189610942 is an apocalyptic number.

189610942 is a deficient number, since it is larger than the sum of its proper divisors (116747330).

189610942 is a wasteful number, since it uses less digits than its factorization.

189610942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133023.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 189610942 is about 13769.9289032297. The cubic root of 189610942 is about 574.4970442480.

The spelling of 189610942 in words is "one hundred eighty-nine million, six hundred ten thousand, nine hundred forty-two".