32405488 has 80 divisors (see below), whose sum is σ = 70491520. Its totient is φ = 14370048.

The previous prime is 32405453. The next prime is 32405489. The reversal of 32405488 is 88450423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32405489) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 483631 + ... + 483697.

It is an arithmetic number, because the mean of its divisors is an integer number (881144).

Almost surely, 2^32405488 is an apocalyptic number.

32405488 is a gapful number since it is divisible by the number (38) 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 32405488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35245760).

32405488 is an abundant number, since it is smaller than the sum of its proper divisors (38086032).

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

32405488 is a wasteful number, since it uses less digits than its factorization.

32405488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 32405488 is about 5692.5818395522. The cubic root of 32405488 is about 318.8155693381.

The spelling of 32405488 in words is "thirty-two million, four hundred five thousand, four hundred eighty-eight".