40540264 has 8 divisors (see below), whose sum is σ = 76013010. Its totient is φ = 20270128.

The previous prime is 40540249. The next prime is 40540303. The reversal of 40540264 is 46204504.

It can be written as a sum of positive squares in only one way, i.e., 37088100 + 3452164 = 6090^2 + 1858^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 2533759 + ... + 2533774.

Almost surely, 2^40540264 is an apocalyptic number.

It is an amenable number.

40540264 is a deficient number, since it is larger than the sum of its proper divisors (35472746).

40540264 is a wasteful number, since it uses less digits than its factorization.

40540264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5067539 (or 5067535 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 40540264 is about 6367.1236834225. The cubic root of 40540264 is about 343.5280394540.

Adding to 40540264 its reverse (46204504), we get a palindrome (86744768).

It can be divided in two parts, 40540 and 264, that added together give a palindrome (40804).

The spelling of 40540264 in words is "forty million, five hundred forty thousand, two hundred sixty-four".