33941728 has 48 divisors (see below), whose sum is σ = 69521760. Its totient is φ = 16298496.

The previous prime is 33941711. The next prime is 33941729. The reversal of 33941728 is 82714933.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33941729) 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, 128925 + ... + 129187.

It is an arithmetic number, because the mean of its divisors is an integer number (1448370).

Almost surely, 2^33941728 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 33941728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34760880).

33941728 is an abundant number, since it is smaller than the sum of its proper divisors (35580032).

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

33941728 is a wasteful number, since it uses less digits than its factorization.

33941728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 411 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 33941728 is about 5825.9529692575. The cubic root of 33941728 is about 323.7759971769.

The spelling of 33941728 in words is "thirty-three million, nine hundred forty-one thousand, seven hundred twenty-eight".