40430659 has 2 divisors, whose sum is σ = 40430660. Its totient is φ = 40430658.

The previous prime is 40430647. The next prime is 40430671. The reversal of 40430659 is 95603404.

It is a balanced prime because it is at equal distance from previous prime (40430647) and next prime (40430671).

It is a cyclic number.

It is not a de Polignac number, because 40430659 - 2⁷ = 40430531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40430659.

It is not a weakly prime, because it can be changed into another prime (40430359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20215329 + 20215330.

It is an arithmetic number, because the mean of its divisors is an integer number (20215330).

Almost surely, 2^40430659 is an apocalyptic number.

40430659 is a deficient number, since it is larger than the sum of its proper divisors (1).

40430659 is an equidigital number, since it uses as much as digits as its factorization.

40430659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 40430659 is about 6358.5107533132. The cubic root of 40430659 is about 343.2181715963.

The spelling of 40430659 in words is "forty million, four hundred thirty thousand, six hundred fifty-nine".