40469659 has 2 divisors, whose sum is σ = 40469660. Its totient is φ = 40469658.

The previous prime is 40469641. The next prime is 40469683. The reversal of 40469659 is 95696404.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40469659 - 2¹⁷ = 40338587 is a prime.

It is not a weakly prime, because it can be changed into another prime (40469059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20234829 + 20234830.

It is an arithmetic number, because the mean of its divisors is an integer number (20234830).

Almost surely, 2^40469659 is an apocalyptic number.

40469659 is a deficient number, since it is larger than the sum of its proper divisors (1).

40469659 is an equidigital number, since it uses as much as digits as its factorization.

40469659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 40469659 is about 6361.5767699526. The cubic root of 40469659 is about 343.3284938730.

The spelling of 40469659 in words is "forty million, four hundred sixty-nine thousand, six hundred fifty-nine".