234189564 has 24 divisors (see below), whose sum is σ = 624505728. Its totient is φ = 66911280.

The previous prime is 234189547. The next prime is 234189583. The reversal of 234189564 is 465981432.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1393902 + ... + 1394069.

It is an arithmetic number, because the mean of its divisors is an integer number (26021072).

Almost surely, 2^234189564 is an apocalyptic number.

It is an amenable number.

234189564 is an abundant number, since it is smaller than the sum of its proper divisors (390316164).

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

234189564 is a wasteful number, since it uses less digits than its factorization.

234189564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2787985 (or 2787983 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 234189564 is about 15303.2533795922. The cubic root of 234189564 is about 616.3903714125.

The spelling of 234189564 in words is "two hundred thirty-four million, one hundred eighty-nine thousand, five hundred sixty-four".