189425489 has 8 divisors (see below), whose sum is σ = 209262720. Its totient is φ = 170024400.

The previous prime is 189425479. The next prime is 189425503. The reversal of 189425489 is 984524981.

189425489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 189425489 - 2⁴ = 189425473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189425429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108122 + ... + 109859.

It is an arithmetic number, because the mean of its divisors is an integer number (26157840).

Almost surely, 2^189425489 is an apocalyptic number.

It is an amenable number.

189425489 is a deficient number, since it is larger than the sum of its proper divisors (19837231).

189425489 is a wasteful number, since it uses less digits than its factorization.

189425489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218071.

The product of its digits is 829440, while the sum is 50.

The square root of 189425489 is about 13763.1932704587. The cubic root of 189425489 is about 574.3096834811.

The spelling of 189425489 in words is "one hundred eighty-nine million, four hundred twenty-five thousand, four hundred eighty-nine".