32012864 has 56 divisors (see below), whose sum is σ = 69235320. Its totient is φ = 14598144.

The previous prime is 32012837. The next prime is 32012867. The reversal of 32012864 is 46821023.

It can be written as a sum of positive squares in 4 ways, for example, as 1982464 + 30030400 = 1408^2 + 5480^2 .

It is a super-2 number, since 2×32012864² = 2049646922964992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (32012867) 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 7 ways as a sum of consecutive naturals, for example, 90512 + ... + 90864.

It is an arithmetic number, because the mean of its divisors is an integer number (1236345).

Almost surely, 2^32012864 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 32012864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34617660).

32012864 is an abundant number, since it is smaller than the sum of its proper divisors (37222456).

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

32012864 is a wasteful number, since it uses less digits than its factorization.

32012864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 477 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 32012864 is about 5657.9911629482. The cubic root of 32012864 is about 317.5227470424.

Adding to 32012864 its reverse (46821023), we get a palindrome (78833887).

The spelling of 32012864 in words is "thirty-two million, twelve thousand, eight hundred sixty-four".