23642419 has 2 divisors, whose sum is σ = 23642420. Its totient is φ = 23642418.

The previous prime is 23642351. The next prime is 23642431. The reversal of 23642419 is 91424632.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23642419 - 2¹¹ = 23640371 is a prime.

It is a super-2 number, since 2×23642419² = 1117927952343122, which contains 22 as substring.

It is a plaindrome in base 11.

It is not a weakly prime, because it can be changed into another prime (23642449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11821209 + 11821210.

It is an arithmetic number, because the mean of its divisors is an integer number (11821210).

Almost surely, 2^23642419 is an apocalyptic number.

23642419 is a deficient number, since it is larger than the sum of its proper divisors (1).

23642419 is an equidigital number, since it uses as much as digits as its factorization.

23642419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 31.

The square root of 23642419 is about 4862.3470670038. The cubic root of 23642419 is about 287.0101814629.

The spelling of 23642419 in words is "twenty-three million, six hundred forty-two thousand, four hundred nineteen".