24789140 has 12 divisors (see below), whose sum is σ = 52057236. Its totient is φ = 9915648.

The previous prime is 24789139. The next prime is 24789143. The reversal of 24789140 is 4198742.

It can be written as a sum of positive squares in 2 ways, for example, as 13512976 + 11276164 = 3676^2 + 3358^2 .

It is a super-2 number, since 2×24789140² = 1229002923879200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 24789140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24789143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 619709 + ... + 619748.

It is an arithmetic number, because the mean of its divisors is an integer number (4338103).

Almost surely, 2^24789140 is an apocalyptic number.

24789140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24789140 is an abundant number, since it is smaller than the sum of its proper divisors (27268096).

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

24789140 is a wasteful number, since it uses less digits than its factorization.

24789140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239466 (or 1239464 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 24789140 is about 4978.8693495612. The cubic root of 24789140 is about 291.5773738452.

The spelling of 24789140 in words is "twenty-four million, seven hundred eighty-nine thousand, one hundred forty".