40097444 has 6 divisors (see below), whose sum is σ = 70170534. Its totient is φ = 20048720.

The previous prime is 40097443. The next prime is 40097479. The reversal of 40097444 is 44479004.

40097444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 34668544 + 5428900 = 5888^2 + 2330^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40097444.

It is not an unprimeable number, because it can be changed into a prime (40097443) by changing a digit.

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 as a sum of consecutive naturals, namely, 5012177 + ... + 5012184.

It is an arithmetic number, because the mean of its divisors is an integer number (11695089).

Almost surely, 2^40097444 is an apocalyptic number.

It is an amenable number.

40097444 is a deficient number, since it is larger than the sum of its proper divisors (30073090).

40097444 is a wasteful number, since it uses less digits than its factorization.

40097444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10024365 (or 10024363 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 40097444 is about 6332.2542589508. The cubic root of 40097444 is about 342.2726756226.

The spelling of 40097444 in words is "forty million, ninety-seven thousand, four hundred forty-four".