232199136 has 144 divisors (see below), whose sum is σ = 737768304. Its totient is φ = 71414784.

The previous prime is 232199119. The next prime is 232199137. The reversal of 232199136 is 631991232.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 232199136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232199137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99940 + ... + 102236.

It is an arithmetic number, because the mean of its divisors is an integer number (5123391).

Almost surely, 2^232199136 is an apocalyptic number.

232199136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 232199136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368884152).

232199136 is an abundant number, since it is smaller than the sum of its proper divisors (505569168).

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

232199136 is a wasteful number, since it uses less digits than its factorization.

232199136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2335 (or 2315 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 232199136 is about 15238.0817690417. The cubic root of 232199136 is about 614.6391220105.

The spelling of 232199136 in words is "two hundred thirty-two million, one hundred ninety-nine thousand, one hundred thirty-six".