189457250 has 16 divisors (see below), whose sum is σ = 354664440. Its totient is φ = 75782800.

The previous prime is 189457249. The next prime is 189457259. The reversal of 189457250 is 52754981.

189457250 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 4 ways, for example, as 107391769 + 82065481 = 10363^2 + 9059^2 .

It is a junction number, because it is equal to n+sod(n) for n = 189457198 and 189457207.

It is not an unprimeable number, because it can be changed into a prime (189457259) 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, 378665 + ... + 379164.

Almost surely, 2^189457250 is an apocalyptic number.

189457250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189457250 is a deficient number, since it is larger than the sum of its proper divisors (165207190).

189457250 is an equidigital number, since it uses as much as digits as its factorization.

189457250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757846 (or 757836 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 189457250 is about 13764.3470604312. The cubic root of 189457250 is about 574.3417798841.

The spelling of 189457250 in words is "one hundred eighty-nine million, four hundred fifty-seven thousand, two hundred fifty".