32515230 has 64 divisors (see below), whose sum is σ = 87464448. Its totient is φ = 7666560.

The previous prime is 32515201. The next prime is 32515243. The reversal of 32515230 is 3251523.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 32515197 and 32515206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10879 + ... + 13541.

It is an arithmetic number, because the mean of its divisors is an integer number (1366632).

Almost surely, 2^32515230 is an apocalyptic number.

32515230 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 32515230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43732224).

32515230 is an abundant number, since it is smaller than the sum of its proper divisors (54949218).

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

32515230 is a wasteful number, since it uses less digits than its factorization.

32515230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2721.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 32515230 is about 5702.2127284064. The cubic root of 32515230 is about 319.1750561535.

Adding to 32515230 its reverse (3251523), we get a palindrome (35766753).

The spelling of 32515230 in words is "thirty-two million, five hundred fifteen thousand, two hundred thirty".