40022659 has 2 divisors, whose sum is σ = 40022660. Its totient is φ = 40022658.

The previous prime is 40022657. The next prime is 40022693. The reversal of 40022659 is 95622004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40022659 - 2¹ = 40022657 is a prime.

Together with 40022657, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40022657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20011329 + 20011330.

It is an arithmetic number, because the mean of its divisors is an integer number (20011330).

Almost surely, 2^40022659 is an apocalyptic number.

40022659 is a deficient number, since it is larger than the sum of its proper divisors (1).

40022659 is an equidigital number, since it uses as much as digits as its factorization.

40022659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 40022659 is about 6326.3464179572. The cubic root of 40022659 is about 342.0597543870.

The spelling of 40022659 in words is "forty million, twenty-two thousand, six hundred fifty-nine".