189628854 has 64 divisors (see below), whose sum is σ = 423360000. Its totient is φ = 56367360.

The previous prime is 189628853. The next prime is 189628877. The reversal of 189628854 is 458826981.

189628854 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 189628797 and 189628806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189628853) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134847 + ... + 136245.

It is an arithmetic number, because the mean of its divisors is an integer number (6615000).

Almost surely, 2^189628854 is an apocalyptic number.

189628854 is an abundant number, since it is smaller than the sum of its proper divisors (233731146).

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

189628854 is a wasteful number, since it uses less digits than its factorization.

189628854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493.

The product of its digits is 1105920, while the sum is 51.

The square root of 189628854 is about 13770.5792906471. The cubic root of 189628854 is about 574.5151340392.

The spelling of 189628854 in words is "one hundred eighty-nine million, six hundred twenty-eight thousand, eight hundred fifty-four".