24270428 has 72 divisors (see below), whose sum is σ = 55093248. Its totient is φ = 9142848.

The previous prime is 24270349. The next prime is 24270437. The reversal of 24270428 is 82407242.

It is a self number, because there is not a number n which added to its sum of digits gives 24270428.

It is a congruent number.

It is an unprimeable number.

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, 108725 + ... + 108947.

It is an arithmetic number, because the mean of its divisors is an integer number (765184).

Almost surely, 2^24270428 is an apocalyptic number.

24270428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 24270428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27546624).

24270428 is an abundant number, since it is smaller than the sum of its proper divisors (30822820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

24270428 is a wasteful number, since it uses less digits than its factorization.

24270428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 24270428 is about 4926.5026134165. The cubic root of 24270428 is about 289.5292719995.

The spelling of 24270428 in words is "twenty-four million, two hundred seventy thousand, four hundred twenty-eight".