40012277 has 2 divisors, whose sum is σ = 40012278. Its totient is φ = 40012276.

The previous prime is 40012267. The next prime is 40012319. The reversal of 40012277 is 77221004.

40012277 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31798321 + 8213956 = 5639^2 + 2866^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40012277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40012267) 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, 20006138 + 20006139.

It is an arithmetic number, because the mean of its divisors is an integer number (20006139).

Almost surely, 2^40012277 is an apocalyptic number.

It is an amenable number.

40012277 is a deficient number, since it is larger than the sum of its proper divisors (1).

40012277 is an equidigital number, since it uses as much as digits as its factorization.

40012277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 40012277 is about 6325.5258279451. The cubic root of 40012277 is about 342.0301747141.

The spelling of 40012277 in words is "forty million, twelve thousand, two hundred seventy-seven".