40502784 has 80 divisors (see below), whose sum is σ = 123349248. Its totient is φ = 11569152.

The previous prime is 40502723. The next prime is 40502797. The reversal of 40502784 is 48720504.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8869 + ... + 12635.

Almost surely, 2^40502784 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 40502784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61674624).

40502784 is an abundant number, since it is smaller than the sum of its proper divisors (82846464).

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

40502784 is an equidigital number, since it uses as much as digits as its factorization.

40502784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3795 (or 3779 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 40502784 is about 6364.1797586178. The cubic root of 40502784 is about 343.4221414362.

The spelling of 40502784 in words is "forty million, five hundred two thousand, seven hundred eighty-four".