40940880 has 80 divisors (see below), whose sum is σ = 127759680. Its totient is φ = 10845184.

The previous prime is 40940843. The next prime is 40940891. The reversal of 40940880 is 8804904.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42484 + ... + 43436.

It is an arithmetic number, because the mean of its divisors is an integer number (1596996).

Almost surely, 2^40940880 is an apocalyptic number.

40940880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40940880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63879840).

40940880 is an abundant number, since it is smaller than the sum of its proper divisors (86818800).

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

40940880 is a wasteful number, since it uses less digits than its factorization.

40940880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148 (or 1142 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 40940880 is about 6398.5060756398. The cubic root of 40940880 is about 344.6559056102.

The spelling of 40940880 in words is "forty million, nine hundred forty thousand, eight hundred eighty".