40687800 has 96 divisors (see below), whose sum is σ = 133585200. Its totient is φ = 10209280.

The previous prime is 40687771. The next prime is 40687859. The reversal of 40687800 is 878604.

40687800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 8206 + ... + 12194.

Almost surely, 2^40687800 is an apocalyptic number.

40687800 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 40687800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66792600).

40687800 is an abundant number, since it is smaller than the sum of its proper divisors (92897400).

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

40687800 is a wasteful number, since it uses less digits than its factorization.

40687800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4025 (or 4016 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 40687800 is about 6378.6989268972. The cubic root of 40687800 is about 343.9442626479.

The spelling of 40687800 in words is "forty million, six hundred eighty-seven thousand, eight hundred".