40756306 has 4 divisors (see below), whose sum is σ = 61134462. Its totient is φ = 20378152.

The previous prime is 40756291. The next prime is 40756319. The reversal of 40756306 is 60365704.

40756306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 32024281 + 8732025 = 5659^2 + 2955^2 .

It is a super-2 number, since 2×40756306² = 3322152957531272, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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, 10189075 + ... + 10189078.

Almost surely, 2^40756306 is an apocalyptic number.

40756306 is a deficient number, since it is larger than the sum of its proper divisors (20378156).

40756306 is a wasteful number, since it uses less digits than its factorization.

40756306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20378155.

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

The square root of 40756306 is about 6384.0665723346. The cubic root of 40756306 is about 344.1371872601.

The spelling of 40756306 in words is "forty million, seven hundred fifty-six thousand, three hundred six".