41391640 has 16 divisors (see below), whose sum is σ = 93131280. Its totient is φ = 16556640.

The previous prime is 41391619. The next prime is 41391653. The reversal of 41391640 is 4619314.

41391640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 41391599 and 41391608.

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 3 ways as a sum of consecutive naturals, for example, 517356 + ... + 517435.

It is an arithmetic number, because the mean of its divisors is an integer number (5820705).

Almost surely, 2^41391640 is an apocalyptic number.

41391640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

41391640 is an abundant number, since it is smaller than the sum of its proper divisors (51739640).

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

41391640 is a wasteful number, since it uses less digits than its factorization.

41391640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034802 (or 1034798 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 41391640 is about 6433.6334990424. The cubic root of 41391640 is about 345.9161813738.

The spelling of 41391640 in words is "forty-one million, three hundred ninety-one thousand, six hundred forty".