32650000 has 60 divisors (see below), whose sum is σ = 79190244. Its totient is φ = 13040000.

The previous prime is 32649983. The next prime is 32650001. The reversal of 32650000 is 5623.

It can be written as a sum of positive squares in 6 ways, for example, as 29986576 + 2663424 = 5476^2 + 1632^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32650001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49674 + ... + 50326.

Almost surely, 2^32650000 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 32650000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39595122).

32650000 is an abundant number, since it is smaller than the sum of its proper divisors (46540244).

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

32650000 is an frugal number, since it uses more digits than its factorization.

32650000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 32650000 is about 5714.0178508647. The cubic root of 32650000 is about 319.6154234170.

Adding to 32650000 its reverse (5623), we get a palindrome (32655623).

The spelling of 32650000 in words is "thirty-two million, six hundred fifty thousand".