32470720 has 56 divisors (see below), whose sum is σ = 80010000. Its totient is φ = 12536832.

The previous prime is 32470717. The next prime is 32470723. The reversal of 32470720 is 2707423.

It is an interprime number because it is at equal distance from previous prime (32470717) and next prime (32470723).

It is not an unprimeable number, because it can be changed into a prime (32470723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7531 + ... + 11029.

It is an arithmetic number, because the mean of its divisors is an integer number (1428750).

Almost surely, 2^32470720 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 32470720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40005000).

32470720 is an abundant number, since it is smaller than the sum of its proper divisors (47539280).

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

32470720 is a wasteful number, since it uses less digits than its factorization.

32470720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3545 (or 3535 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 32470720 is about 5698.3085209560. The cubic root of 32470720 is about 319.0293503915.

The spelling of 32470720 in words is "thirty-two million, four hundred seventy thousand, seven hundred twenty".