24720930 has 64 divisors (see below), whose sum is σ = 71003520. Its totient is φ = 6084288.

The previous prime is 24720911. The next prime is 24720937. The reversal of 24720930 is 3902742.

It is a super-3 number, since 3×24720930³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 24720894 and 24720903.

It is not an unprimeable number, because it can be changed into a prime (24720937) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12 + ... + 7031.

It is an arithmetic number, because the mean of its divisors is an integer number (1109430).

Almost surely, 2^24720930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 24720930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35501760).

24720930 is an abundant number, since it is smaller than the sum of its proper divisors (46282590).

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

24720930 is a wasteful number, since it uses less digits than its factorization.

24720930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7072 (or 7066 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 24720930 is about 4972.0146821988. The cubic root of 24720930 is about 291.3096926162.

The spelling of 24720930 in words is "twenty-four million, seven hundred twenty thousand, nine hundred thirty".