189000426 has 16 divisors (see below), whose sum is σ = 381898944. Its totient is φ = 62350464.

The previous prime is 189000401. The next prime is 189000433. The reversal of 189000426 is 624000981.

It is a super-2 number, since 2×189000426² = 71442322056362952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 189000393 and 189000402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161790 + ... + 162953.

It is an arithmetic number, because the mean of its divisors is an integer number (23868684).

Almost surely, 2^189000426 is an apocalyptic number.

189000426 is an abundant number, since it is smaller than the sum of its proper divisors (192898518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189000426 is a wasteful number, since it uses less digits than its factorization.

189000426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324845.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 189000426 is about 13747.7425783290. The cubic root of 189000426 is about 573.8797860000.

The spelling of 189000426 in words is "one hundred eighty-nine million, four hundred twenty-six", and thus it is an aban number.