189452398 has 4 divisors (see below), whose sum is σ = 284178600. Its totient is φ = 94726198.

The previous prime is 189452323. The next prime is 189452399. The reversal of 189452398 is 893254981.

189452398 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 893254981 = 1697 ⋅526373.

It is a super-2 number, since 2×189452398² = 71784422215900808, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189452399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47363098 + ... + 47363101.

It is an arithmetic number, because the mean of its divisors is an integer number (71044650).

Almost surely, 2^189452398 is an apocalyptic number.

189452398 is a deficient number, since it is larger than the sum of its proper divisors (94726202).

189452398 is an equidigital number, since it uses as much as digits as its factorization.

189452398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94726201.

The product of its digits is 622080, while the sum is 49.

The square root of 189452398 is about 13764.1708068448. The cubic root of 189452398 is about 574.3368768781.

The spelling of 189452398 in words is "one hundred eighty-nine million, four hundred fifty-two thousand, three hundred ninety-eight".