234198636 has 72 divisors (see below), whose sum is σ = 669170880. Its totient is φ = 63389088.

The previous prime is 234198611. The next prime is 234198659. The reversal of 234198636 is 636891432.

234198636 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×234198636² = 109698002208520992, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 691 + ... + 21653.

It is an arithmetic number, because the mean of its divisors is an integer number (9294040).

Almost surely, 2^234198636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 234198636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334585440).

234198636 is an abundant number, since it is smaller than the sum of its proper divisors (434972244).

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

234198636 is a wasteful number, since it uses less digits than its factorization.

234198636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21003 (or 20994 counting only the distinct ones).

The product of its digits is 186624, while the sum is 42.

The square root of 234198636 is about 15303.5497842821. The cubic root of 234198636 is about 616.3983305221.

The spelling of 234198636 in words is "two hundred thirty-four million, one hundred ninety-eight thousand, six hundred thirty-six".