40193880 has 64 divisors (see below), whose sum is σ = 125832960. Its totient is φ = 10251648.

The previous prime is 40193869. The next prime is 40193897. The reversal of 40193880 is 8839104.

40193880 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 15 ways as a sum of consecutive naturals, for example, 4522 + ... + 10041.

It is an arithmetic number, because the mean of its divisors is an integer number (1966140).

Almost surely, 2^40193880 is an apocalyptic number.

40193880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40193880 is an abundant number, since it is smaller than the sum of its proper divisors (85639080).

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

40193880 is a wasteful number, since it uses less digits than its factorization.

40193880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14600 (or 14596 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 40193880 is about 6339.8643518612. The cubic root of 40193880 is about 342.5468492221.

The spelling of 40193880 in words is "forty million, one hundred ninety-three thousand, eight hundred eighty".