40356706 has 16 divisors (see below), whose sum is σ = 65318904. Its totient is φ = 18589824.

The previous prime is 40356683. The next prime is 40356709. The reversal of 40356706 is 60765304.

It can be written as a sum of positive squares in 4 ways, for example, as 20331081 + 20025625 = 4509^2 + 4475^2 .

It is not an unprimeable number, because it can be changed into a prime (40356709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15790 + ... + 18166.

Almost surely, 2^40356706 is an apocalyptic number.

40356706 is a deficient number, since it is larger than the sum of its proper divisors (24962198).

40356706 is a wasteful number, since it uses less digits than its factorization.

40356706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3045.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 40356706 is about 6352.6928148621. The cubic root of 40356706 is about 343.0087801304.

The spelling of 40356706 in words is "forty million, three hundred fifty-six thousand, seven hundred six".