24220961 has 4 divisors (see below), whose sum is σ = 24270000. Its totient is φ = 24171924.

The previous prime is 24220957. The next prime is 24220979. The reversal of 24220961 is 16902242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 24220961 - 2² = 24220957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 24220961.

It is not an unprimeable number, because it can be changed into a prime (24220061) 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 in 3 ways as a sum of consecutive naturals, for example, 23771 + ... + 24768.

It is an arithmetic number, because the mean of its divisors is an integer number (6067500).

Almost surely, 2^24220961 is an apocalyptic number.

It is an amenable number.

24220961 is a deficient number, since it is larger than the sum of its proper divisors (49039).

24220961 is an equidigital number, since it uses as much as digits as its factorization.

24220961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49038.

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

The square root of 24220961 is about 4921.4795539553. The cubic root of 24220961 is about 289.3324359459.

The spelling of 24220961 in words is "twenty-four million, two hundred twenty thousand, nine hundred sixty-one".