32215480 has 64 divisors (see below), whose sum is σ = 79678080. Its totient is φ = 11625600.

The previous prime is 32215451. The next prime is 32215499. The reversal of 32215480 is 8451223.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92667 + ... + 93013.

It is an arithmetic number, because the mean of its divisors is an integer number (1244970).

Almost surely, 2^32215480 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 32215480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39839040).

32215480 is an abundant number, since it is smaller than the sum of its proper divisors (47462600).

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

32215480 is a wasteful number, since it uses less digits than its factorization.

32215480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580 (or 576 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 32215480 is about 5675.8682155244. The cubic root of 32215480 is about 318.1912276253.

It can be divided in two parts, 32 and 215480, that added together give a palindrome (215512).

The spelling of 32215480 in words is "thirty-two million, two hundred fifteen thousand, four hundred eighty".