24221380 has 24 divisors (see below), whose sum is σ = 52620120. Its totient is φ = 9354240.

The previous prime is 24221339. The next prime is 24221383. The reversal of 24221380 is 8312242.

It can be written as a sum of positive squares in 4 ways, for example, as 73984 + 24147396 = 272^2 + 4914^2 .

It is not an unprimeable number, because it can be changed into a prime (24221383) by changing a digit.

It is a nontrivial repunit in base 289.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20301 + ... + 21460.

It is an arithmetic number, because the mean of its divisors is an integer number (2192505).

Almost surely, 2^24221380 is an apocalyptic number.

24221380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24221380 is an abundant number, since it is smaller than the sum of its proper divisors (28398740).

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

24221380 is a wasteful number, since it uses less digits than its factorization.

24221380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41799 (or 41797 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 24221380 is about 4921.5221222707. The cubic root of 24221380 is about 289.3341043299.

The spelling of 24221380 in words is "twenty-four million, two hundred twenty-one thousand, three hundred eighty".