189382739 has 8 divisors (see below), whose sum is σ = 233086560. Its totient is φ = 149841216.

The previous prime is 189382733. The next prime is 189382741. The reversal of 189382739 is 937283981.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-189382739 is a prime.

It is a super-2 number, since 2×189382739² = 71731643662284242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (189382733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1040474 + ... + 1040655.

It is an arithmetic number, because the mean of its divisors is an integer number (29135820).

Almost surely, 2^189382739 is an apocalyptic number.

189382739 is a deficient number, since it is larger than the sum of its proper divisors (43703821).

189382739 is a wasteful number, since it uses less digits than its factorization.

189382739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2081149.

The product of its digits is 653184, while the sum is 50.

The square root of 189382739 is about 13761.6401275429. The cubic root of 189382739 is about 574.2664763670.

The spelling of 189382739 in words is "one hundred eighty-nine million, three hundred eighty-two thousand, seven hundred thirty-nine".