40097864 has 16 divisors (see below), whose sum is σ = 75254400. Its totient is φ = 20030032.

The previous prime is 40097843. The next prime is 40097879. The reversal of 40097864 is 46879004.

It is a happy 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 3 ways as a sum of consecutive naturals, for example, 11297 + ... + 14415.

It is an arithmetic number, because the mean of its divisors is an integer number (4703400).

Almost surely, 2^40097864 is an apocalyptic number.

It is an amenable number.

40097864 is a deficient number, since it is larger than the sum of its proper divisors (35156536).

40097864 is a wasteful number, since it uses less digits than its factorization.

40097864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4732 (or 4728 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 40097864 is about 6332.2874224091. The cubic root of 40097864 is about 342.2738706616.

The spelling of 40097864 in words is "forty million, ninety-seven thousand, eight hundred sixty-four".