40297567 has 2 divisors, whose sum is σ = 40297568. Its totient is φ = 40297566.

The previous prime is 40297549. The next prime is 40297571. The reversal of 40297567 is 76579204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40297567 - 2²³ = 31908959 is a prime.

It is a super-2 number, since 2×40297567² = 3247787812238978, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40297507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20148783 + 20148784.

It is an arithmetic number, because the mean of its divisors is an integer number (20148784).

Almost surely, 2^40297567 is an apocalyptic number.

40297567 is a deficient number, since it is larger than the sum of its proper divisors (1).

40297567 is an equidigital number, since it uses as much as digits as its factorization.

40297567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 40297567 is about 6348.0364680742. The cubic root of 40297567 is about 342.8411490638.

It can be divided in two parts, 402 and 97567, that added together give a square (97969 = 313²).

The spelling of 40297567 in words is "forty million, two hundred ninety-seven thousand, five hundred sixty-seven".