189498150 has 192 divisors, whose sum is σ = 578534400. Its totient is φ = 45365760.

The previous prime is 189498143. The next prime is 189498163. The reversal of 189498150 is 51894981.

189498150 is a `hidden beast` number, since 1 + 8 + 9 + 498 + 150 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 189498096 and 189498105.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 527671 + ... + 528029.

It is an arithmetic number, because the mean of its divisors is an integer number (3013200).

Almost surely, 2^189498150 is an apocalyptic number.

189498150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 189498150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289267200).

189498150 is an abundant number, since it is smaller than the sum of its proper divisors (389036250).

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

189498150 is a wasteful number, since it uses less digits than its factorization.

189498150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The square root of 189498150 is about 13765.8327027463. The cubic root of 189498150 is about 574.3831065134.

The spelling of 189498150 in words is "one hundred eighty-nine million, four hundred ninety-eight thousand, one hundred fifty".