189967050 has 144 divisors (see below), whose sum is σ = 628293120. Its totient is φ = 40072320.

The previous prime is 189967049. The next prime is 189967087. The reversal of 189967050 is 50769981.

189967050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 189966987 and 189967005.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 38631 + ... + 43269.

Almost surely, 2^189967050 is an apocalyptic number.

189967050 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 189967050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314146560).

189967050 is an abundant number, since it is smaller than the sum of its proper divisors (438326070).

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

189967050 is a wasteful number, since it uses less digits than its factorization.

189967050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4677 (or 4669 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 189967050 is about 13782.8534781445. The cubic root of 189967050 is about 574.8564733138.

The spelling of 189967050 in words is "one hundred eighty-nine million, nine hundred sixty-seven thousand, fifty".