189199448 has 16 divisors (see below), whose sum is σ = 366192960. Its totient is φ = 91548000.

The previous prime is 189199447. The next prime is 189199457. The reversal of 189199448 is 844991981.

189199448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×189199448² = 71592862247009408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 189199448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189199447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381203 + ... + 381698.

It is an arithmetic number, because the mean of its divisors is an integer number (22887060).

Almost surely, 2^189199448 is an apocalyptic number.

It is an amenable number.

189199448 is a deficient number, since it is larger than the sum of its proper divisors (176993512).

189199448 is a wasteful number, since it uses less digits than its factorization.

189199448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762938 (or 762934 counting only the distinct ones).

The product of its digits is 746496, while the sum is 53.

The square root of 189199448 is about 13754.9790257928. The cubic root of 189199448 is about 574.0811517471.

The spelling of 189199448 in words is "one hundred eighty-nine million, one hundred ninety-nine thousand, four hundred forty-eight".