40359091 has 2 divisors, whose sum is σ = 40359092. Its totient is φ = 40359090.

The previous prime is 40359079. The next prime is 40359101. The reversal of 40359091 is 19095304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40359091 - 2¹¹ = 40357043 is a prime.

It is not a weakly prime, because it can be changed into another prime (40359001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20179545 + 20179546.

It is an arithmetic number, because the mean of its divisors is an integer number (20179546).

Almost surely, 2^40359091 is an apocalyptic number.

40359091 is a deficient number, since it is larger than the sum of its proper divisors (1).

40359091 is an equidigital number, since it uses as much as digits as its factorization.

40359091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 40359091 is about 6352.8805277606. The cubic root of 40359091 is about 343.0155370398.

The spelling of 40359091 in words is "forty million, three hundred fifty-nine thousand, ninety-one".