40768528 has 40 divisors (see below), whose sum is σ = 84592800. Its totient is φ = 18975744.

The previous prime is 40768523. The next prime is 40768537. The reversal of 40768528 is 82586704.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (40768523) 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, 16800 + ... + 19072.

It is an arithmetic number, because the mean of its divisors is an integer number (2114820).

Almost surely, 2^40768528 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 40768528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42296400).

40768528 is an abundant number, since it is smaller than the sum of its proper divisors (43824272).

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

40768528 is a wasteful number, since it uses less digits than its factorization.

40768528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2359 (or 2353 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 40768528 is about 6385.0237274422. The cubic root of 40768528 is about 344.1715837723.

The spelling of 40768528 in words is "forty million, seven hundred sixty-eight thousand, five hundred twenty-eight".