32440230 has 64 divisors (see below), whose sum is σ = 87238080. Its totient is φ = 8577792.

The previous prime is 32440217. The next prime is 32440273. The reversal of 32440230 is 3204423.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 31 ways as a sum of consecutive naturals, for example, 36552 + ... + 37428.

It is an arithmetic number, because the mean of its divisors is an integer number (1363095).

Almost surely, 2^32440230 is an apocalyptic number.

32440230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 32440230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43619040).

32440230 is an abundant number, since it is smaller than the sum of its proper divisors (54797850).

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

32440230 is a wasteful number, since it uses less digits than its factorization.

32440230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030 (or 1024 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 32440230 is about 5695.6325373044. The cubic root of 32440230 is about 318.9294629535.

Adding to 32440230 its reverse (3204423), we get a palindrome (35644653).

The spelling of 32440230 in words is "thirty-two million, four hundred forty thousand, two hundred thirty".