24201421 has 16 divisors (see below), whose sum is σ = 27855360. Its totient is φ = 20874240.

The previous prime is 24201391. The next prime is 24201431. The reversal of 24201421 is 12410242.

It is a cyclic number.

It is not a de Polignac number, because 24201421 - 2⁹ = 24200909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 24201395 and 24201404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24201431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8805 + ... + 11221.

It is an arithmetic number, because the mean of its divisors is an integer number (1740960).

Almost surely, 2^24201421 is an apocalyptic number.

It is an amenable number.

24201421 is a deficient number, since it is larger than the sum of its proper divisors (3653939).

24201421 is a wasteful number, since it uses less digits than its factorization.

24201421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2484.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 24201421 is about 4919.4939780429. The cubic root of 24201421 is about 289.2546097359.

Adding to 24201421 its reverse (12410242), we get a palindrome (36611663).

The spelling of 24201421 in words is "twenty-four million, two hundred one thousand, four hundred twenty-one".