40828928 has 68 divisors (see below), whose sum is σ = 94371120. Its totient is φ = 17301504.

The previous prime is 40828927. The next prime is 40828937. The reversal of 40828928 is 82982804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40828927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458708 + ... + 458796.

Almost surely, 2^40828928 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 40828928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47185560).

40828928 is an abundant number, since it is smaller than the sum of its proper divisors (53542192).

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

40828928 is an frugal number, since it uses more digits than its factorization.

40828928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 40828928 is about 6389.7517948665. The cubic root of 40828928 is about 344.3414673164.

The spelling of 40828928 in words is "forty million, eight hundred twenty-eight thousand, nine hundred twenty-eight".