189420126 has 32 divisors (see below), whose sum is σ = 433678848. Its totient is φ = 54030240.

The previous prime is 189420097. The next prime is 189420151. The reversal of 189420126 is 621024981.

189420126 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24351 + ... + 31173.

It is an arithmetic number, because the mean of its divisors is an integer number (13552464).

Almost surely, 2^189420126 is an apocalyptic number.

189420126 is an abundant number, since it is smaller than the sum of its proper divisors (244258722).

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

189420126 is a wasteful number, since it uses less digits than its factorization.

189420126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7496.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 189420126 is about 13762.9984378405. The cubic root of 189420126 is about 574.3042634926.

The spelling of 189420126 in words is "one hundred eighty-nine million, four hundred twenty thousand, one hundred twenty-six".