40440767 has 2 divisors, whose sum is σ = 40440768. Its totient is φ = 40440766.

The previous prime is 40440733. The next prime is 40440791. The reversal of 40440767 is 76704404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40440767 - 2²⁴ = 23663551 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40442767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20220383 + 20220384.

It is an arithmetic number, because the mean of its divisors is an integer number (20220384).

Almost surely, 2^40440767 is an apocalyptic number.

40440767 is a deficient number, since it is larger than the sum of its proper divisors (1).

40440767 is an equidigital number, since it uses as much as digits as its factorization.

40440767 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 40440767 is about 6359.3055438467. The cubic root of 40440767 is about 343.2467716760.

The spelling of 40440767 in words is "forty million, four hundred forty thousand, seven hundred sixty-seven".