32856740 has 48 divisors (see below), whose sum is σ = 81000192. Its totient is φ = 10958976.

The previous prime is 32856731. The next prime is 32856743. The reversal of 32856740 is 4765823.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 32856740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32856743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2009 + ... + 8351.

It is an arithmetic number, because the mean of its divisors is an integer number (1687504).

Almost surely, 2^32856740 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 32856740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40500096).

32856740 is an abundant number, since it is smaller than the sum of its proper divisors (48143452).

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

32856740 is a wasteful number, since it uses less digits than its factorization.

32856740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6396 (or 6394 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 32856740 is about 5732.0799017460. The cubic root of 32856740 is about 320.2886068158.

The spelling of 32856740 in words is "thirty-two million, eight hundred fifty-six thousand, seven hundred forty".