189557650 has 24 divisors (see below), whose sum is σ = 373318740. Its totient is φ = 71362560.

The previous prime is 189557647. The next prime is 189557663. The reversal of 189557650 is 56755981.

189557650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 158231241 + 31326409 = 12579^2 + 5597^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 189557650.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110655 + ... + 112354.

Almost surely, 2^189557650 is an apocalyptic number.

189557650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189557650 is a deficient number, since it is larger than the sum of its proper divisors (183761090).

189557650 is a wasteful number, since it uses less digits than its factorization.

189557650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223038 (or 223033 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 46.

The square root of 189557650 is about 13767.9936809980. The cubic root of 189557650 is about 574.4432165435.

The spelling of 189557650 in words is "one hundred eighty-nine million, five hundred fifty-seven thousand, six hundred fifty".