189541436 has 24 divisors (see below), whose sum is σ = 395566080. Its totient is φ = 77699952.

The previous prime is 189541427. The next prime is 189541447. The reversal of 189541436 is 634145981.

It is a junction number, because it is equal to n+sod(n) for n = 189541393 and 189541402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146516 + ... + 147803.

It is an arithmetic number, because the mean of its divisors is an integer number (16481920).

Almost surely, 2^189541436 is an apocalyptic number.

It is an amenable number.

189541436 is an abundant number, since it is smaller than the sum of its proper divisors (206024644).

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

189541436 is a wasteful number, since it uses less digits than its factorization.

189541436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294353 (or 294351 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 189541436 is about 13767.4048389666. The cubic root of 189541436 is about 574.4268375547.

The spelling of 189541436 in words is "one hundred eighty-nine million, five hundred forty-one thousand, four hundred thirty-six".