189450579 has 12 divisors (see below), whose sum is σ = 261016008. Its totient is φ = 122224320.

The previous prime is 189450559. The next prime is 189450581. The reversal of 189450579 is 975054981.

189450579 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 189450579 - 2⁷ = 189450451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189450529) 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, 29974 + ... + 35739.

It is an arithmetic number, because the mean of its divisors is an integer number (21751334).

Almost surely, 2^189450579 is an apocalyptic number.

189450579 is a deficient number, since it is larger than the sum of its proper divisors (71565429).

189450579 is an equidigital number, since it uses as much as digits as its factorization.

189450579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65778 (or 65747 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 48.

The square root of 189450579 is about 13764.1047293313. The cubic root of 189450579 is about 574.3350387345.

The spelling of 189450579 in words is "one hundred eighty-nine million, four hundred fifty thousand, five hundred seventy-nine".