40663880 has 16 divisors (see below), whose sum is σ = 91493820. Its totient is φ = 16265536.

The previous prime is 40663873. The next prime is 40663891. The reversal of 40663880 is 8836604.

40663880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 39715204 + 948676 = 6302^2 + 974^2 .

It is a super-2 number, since 2×40663880² = 3307102273308800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40663880.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 508259 + ... + 508338.

Almost surely, 2^40663880 is an apocalyptic number.

40663880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40663880 is an abundant number, since it is smaller than the sum of its proper divisors (50829940).

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

40663880 is a wasteful number, since it uses less digits than its factorization.

40663880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016608 (or 1016604 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 40663880 is about 6376.8236607264. The cubic root of 40663880 is about 343.8768488325.

The spelling of 40663880 in words is "forty million, six hundred sixty-three thousand, eight hundred eighty".