24021425 has 24 divisors (see below), whose sum is σ = 32643000. Its totient is φ = 17454080.

The previous prime is 24021421. The next prime is 24021433. The reversal of 24021425 is 52412042.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 1048576 + 22972849 = 1024^2 + 4793^2 .

It is not a de Polignac number, because 24021425 - 2² = 24021421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 24021397 and 24021406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24021421) 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 23 ways as a sum of consecutive naturals, for example, 11351 + ... + 13299.

It is an arithmetic number, because the mean of its divisors is an integer number (1360125).

Almost surely, 2^24021425 is an apocalyptic number.

24021425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

24021425 is a deficient number, since it is larger than the sum of its proper divisors (8621575).

24021425 is a wasteful number, since it uses less digits than its factorization.

24021425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005 (or 2000 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 24021425 is about 4901.1656776730. The cubic root of 24021425 is about 288.5357224133.

Adding to 24021425 its reverse (52412042), we get a palindrome (76433467).

The spelling of 24021425 in words is "twenty-four million, twenty-one thousand, four hundred twenty-five".