23430409 has 2 divisors, whose sum is σ = 23430410. Its totient is φ = 23430408.

The previous prime is 23430397. The next prime is 23430431. The reversal of 23430409 is 90403432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14745600 + 8684809 = 3840^2 + 2947^2 .

It is a cyclic number.

It is not a de Polignac number, because 23430409 - 2⁵ = 23430377 is a prime.

It is not a weakly prime, because it can be changed into another prime (23430499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11715204 + 11715205.

It is an arithmetic number, because the mean of its divisors is an integer number (11715205).

Almost surely, 2^23430409 is an apocalyptic number.

It is an amenable number.

23430409 is a deficient number, since it is larger than the sum of its proper divisors (1).

23430409 is an equidigital number, since it uses as much as digits as its factorization.

23430409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 23430409 is about 4840.4967720266. The cubic root of 23430409 is about 286.1496966830.

The spelling of 23430409 in words is "twenty-three million, four hundred thirty thousand, four hundred nine".