24782020 has 24 divisors (see below), whose sum is σ = 53722368. Its totient is φ = 9592800.

The previous prime is 24782011. The next prime is 24782029. The reversal of 24782020 is 2028742.

It is an interprime number because it is at equal distance from previous prime (24782011) and next prime (24782029).

It is a super-2 number, since 2×24782020² = 1228297030560800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (24782029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19366 + ... + 20605.

It is an arithmetic number, because the mean of its divisors is an integer number (2238432).

Almost surely, 2^24782020 is an apocalyptic number.

24782020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24782020 is an abundant number, since it is smaller than the sum of its proper divisors (28940348).

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

24782020 is a wasteful number, since it uses less digits than its factorization.

24782020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40011 (or 40009 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 24782020 is about 4978.1542764362. The cubic root of 24782020 is about 291.5494553065.

The spelling of 24782020 in words is "twenty-four million, seven hundred eighty-two thousand, twenty".