189453398 has 4 divisors (see below), whose sum is σ = 284180100. Its totient is φ = 94726698.

The previous prime is 189453391. The next prime is 189453401. The reversal of 189453398 is 893354981.

189453398 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.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189453391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47363348 + ... + 47363351.

It is an arithmetic number, because the mean of its divisors is an integer number (71045025).

Almost surely, 2^189453398 is an apocalyptic number.

189453398 is a deficient number, since it is larger than the sum of its proper divisors (94726702).

189453398 is an equidigital number, since it uses as much as digits as its factorization.

189453398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94726701.

The product of its digits is 933120, while the sum is 50.

The square root of 189453398 is about 13764.2071329953. The cubic root of 189453398 is about 574.3378873973.

The spelling of 189453398 in words is "one hundred eighty-nine million, four hundred fifty-three thousand, three hundred ninety-eight".