24789940 has 48 divisors (see below), whose sum is σ = 60060672. Its totient is φ = 8418816.

The previous prime is 24789931. The next prime is 24789949. The reversal of 24789940 is 4998742.

It is an interprime number because it is at equal distance from previous prime (24789931) and next prime (24789949).

It is a super-2 number, since 2×24789940² = 1229082250407200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24789949) 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 15 ways as a sum of consecutive naturals, for example, 15037 + ... + 16603.

It is an arithmetic number, because the mean of its divisors is an integer number (1251264).

Almost surely, 2^24789940 is an apocalyptic number.

24789940 is a gapful number since it is divisible by the number (20) 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 24789940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30030336).

24789940 is an abundant number, since it is smaller than the sum of its proper divisors (35270732).

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

24789940 is a wasteful number, since it uses less digits than its factorization.

24789940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696 (or 1694 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 24789940 is about 4978.9496884383. The cubic root of 24789940 is about 291.5805104256.

The spelling of 24789940 in words is "twenty-four million, seven hundred eighty-nine thousand, nine hundred forty".