190889950 has 24 divisors (see below), whose sum is σ = 355421448. Its totient is φ = 76277280.

The previous prime is 190889947. The next prime is 190889953. The reversal of 190889950 is 59988091.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (190889947) and next prime (190889953).

It is a super-2 number, since 2×190889950² = 72877946022005000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 190889894 and 190889903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190889953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85549 + ... + 87751.

It is an arithmetic number, because the mean of its divisors is an integer number (14809227).

Almost surely, 2^190889950 is an apocalyptic number.

190889950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190889950 is a deficient number, since it is larger than the sum of its proper divisors (164531498).

190889950 is a wasteful number, since it uses less digits than its factorization.

190889950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3948 (or 3943 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 49.

The square root of 190889950 is about 13816.2929181456. The cubic root of 190889950 is about 575.7858944954.

The spelling of 190889950 in words is "one hundred ninety million, eight hundred eighty-nine thousand, nine hundred fifty".