40897518 has 8 divisors (see below), whose sum is σ = 81795048. Its totient is φ = 13632504.

The previous prime is 40897501. The next prime is 40897607. The reversal of 40897518 is 81579804.

40897518 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

40897518 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 40897518.

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, 3408121 + ... + 3408132.

It is an arithmetic number, because the mean of its divisors is an integer number (10224381).

Almost surely, 2^40897518 is an apocalyptic number.

40897518 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40897518 is a wasteful number, since it uses less digits than its factorization.

40897518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6816258.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 40897518 is about 6395.1167307564. The cubic root of 40897518 is about 344.5341833549.

The spelling of 40897518 in words is "forty million, eight hundred ninety-seven thousand, five hundred eighteen".