24421949 has 2 divisors, whose sum is σ = 24421950. Its totient is φ = 24421948.

The previous prime is 24421933. The next prime is 24421951. The reversal of 24421949 is 94912442.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24186724 + 235225 = 4918^2 + 485^2 .

It is a cyclic number.

It is not a de Polignac number, because 24421949 - 2⁴ = 24421933 is a prime.

Together with 24421951, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24471949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12210974 + 12210975.

It is an arithmetic number, because the mean of its divisors is an integer number (12210975).

Almost surely, 2^24421949 is an apocalyptic number.

It is an amenable number.

24421949 is a deficient number, since it is larger than the sum of its proper divisors (1).

24421949 is an equidigital number, since it uses as much as digits as its factorization.

24421949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 35.

The square root of 24421949 is about 4941.8568372627. The cubic root of 24421949 is about 290.1305357643.

The spelling of 24421949 in words is "twenty-four million, four hundred twenty-one thousand, nine hundred forty-nine".