189357616 has 20 divisors (see below), whose sum is σ = 419292112. Its totient is φ = 81153216.

The previous prime is 189357613. The next prime is 189357659. The reversal of 189357616 is 616753981.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (189357613) 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 3 ways as a sum of consecutive naturals, for example, 845235 + ... + 845458.

Almost surely, 2^189357616 is an apocalyptic number.

189357616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

189357616 is an abundant number, since it is smaller than the sum of its proper divisors (229934496).

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

189357616 is a wasteful number, since it uses less digits than its factorization.

189357616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1690708 (or 1690702 counting only the distinct ones).

The product of its digits is 272160, while the sum is 46.

The square root of 189357616 is about 13760.7273063599. The cubic root of 189357616 is about 574.2410817001.

The spelling of 189357616 in words is "one hundred eighty-nine million, three hundred fifty-seven thousand, six hundred sixteen".