40214609 has 2 divisors, whose sum is σ = 40214610. Its totient is φ = 40214608.

The previous prime is 40214593. The next prime is 40214611. The reversal of 40214609 is 90641204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28654609 + 11560000 = 5353^2 + 3400^2 .

It is a cyclic number.

It is not a de Polignac number, because 40214609 - 2⁴ = 40214593 is a prime.

Together with 40214611, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40214509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20107304 + 20107305.

It is an arithmetic number, because the mean of its divisors is an integer number (20107305).

Almost surely, 2^40214609 is an apocalyptic number.

It is an amenable number.

40214609 is a deficient number, since it is larger than the sum of its proper divisors (1).

40214609 is an equidigital number, since it uses as much as digits as its factorization.

40214609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 40214609 is about 6341.4989552944. The cubic root of 40214609 is about 342.6057257918.

The spelling of 40214609 in words is "forty million, two hundred fourteen thousand, six hundred nine".