40034665 has 12 divisors (see below), whose sum is σ = 52806852. Its totient is φ = 29115680.

The previous prime is 40034633. The next prime is 40034669. The reversal of 40034665 is 56643004.

It can be written as a sum of positive squares in 2 ways, for example, as 7441984 + 32592681 = 2728^2 + 5709^2 .

It is not a de Polignac number, because 40034665 - 2⁵ = 40034633 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40034669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32482 + ... + 33691.

It is an arithmetic number, because the mean of its divisors is an integer number (4400571).

Almost surely, 2^40034665 is an apocalyptic number.

It is an amenable number.

40034665 is a deficient number, since it is larger than the sum of its proper divisors (12772187).

40034665 is a wasteful number, since it uses less digits than its factorization.

40034665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66200 (or 66189 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 40034665 is about 6327.2952357228. The cubic root of 40034665 is about 342.0939546703.

Adding to 40034665 its reverse (56643004), we get a palindrome (96677669).

It can be divided in two parts, 4003 and 4665, that added together give a palindrome (8668).

The spelling of 40034665 in words is "forty million, thirty-four thousand, six hundred sixty-five".