189882045 has 48 divisors (see below), whose sum is σ = 337588992. Its totient is φ = 98703360.

The previous prime is 189882041. The next prime is 189882071. The reversal of 189882045 is 540288981.

It is a happy number.

It is not a de Polignac number, because 189882045 - 2² = 189882041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189882041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 328797 + ... + 329373.

It is an arithmetic number, because the mean of its divisors is an integer number (7033104).

Almost surely, 2^189882045 is an apocalyptic number.

189882045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

189882045 is a deficient number, since it is larger than the sum of its proper divisors (147706947).

189882045 is a wasteful number, since it uses less digits than its factorization.

189882045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762 (or 759 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 189882045 is about 13779.7694102623. The cubic root of 189882045 is about 574.7707163979.

The spelling of 189882045 in words is "one hundred eighty-nine million, eight hundred eighty-two thousand, forty-five".