24842421 has 6 divisors (see below), whose sum is σ = 35883510. Its totient is φ = 16561608.

The previous prime is 24842417. The next prime is 24842437. The reversal of 24842421 is 12424842.

It can be written as a sum of positive squares in only one way, i.e., 16719921 + 8122500 = 4089^2 + 2850^2 .

It is not a de Polignac number, because 24842421 - 2² = 24842417 is a prime.

It is a super-2 number, since 2×24842421² = 1234291762282482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24842401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1380126 + ... + 1380143.

It is an arithmetic number, because the mean of its divisors is an integer number (5980585).

Almost surely, 2^24842421 is an apocalyptic number.

It is an amenable number.

24842421 is a deficient number, since it is larger than the sum of its proper divisors (11041089).

24842421 is a wasteful number, since it uses less digits than its factorization.

24842421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2760275 (or 2760272 counting only the distinct ones).

The product of its digits is 4096, while the sum is 27.

The square root of 24842421 is about 4984.2171902918. The cubic root of 24842421 is about 291.7861267749.

The spelling of 24842421 in words is "twenty-four million, eight hundred forty-two thousand, four hundred twenty-one".