24780012 has 24 divisors (see below), whose sum is σ = 58245936. Its totient is φ = 8199168.

The previous prime is 24779987. The next prime is 24780013. The reversal of 24780012 is 21008742.

It is a super-2 number, since 2×24780012² = 1228097989440288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (24780013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5893 + ... + 9180.

It is an arithmetic number, because the mean of its divisors is an integer number (2426914).

Almost surely, 2^24780012 is an apocalyptic number.

It is an amenable number.

24780012 is an abundant number, since it is smaller than the sum of its proper divisors (33465924).

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

24780012 is a wasteful number, since it uses less digits than its factorization.

24780012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15217 (or 15215 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 24780012 is about 4977.9525911764. The cubic root of 24780012 is about 291.5415806845.

Adding to 24780012 its reverse (21008742), we get a palindrome (45788754).

The spelling of 24780012 in words is "twenty-four million, seven hundred eighty thousand, twelve".