24728490 has 40 divisors (see below), whose sum is σ = 66494340. Its totient is φ = 6594048.

The previous prime is 24728471. The next prime is 24728491. The reversal of 24728490 is 9482742.

It can be written as a sum of positive squares in 2 ways, for example, as 20331081 + 4397409 = 4509^2 + 2097^2 .

It is a super-2 number, since 2×24728490² = 1222996435360200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (24728491) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14455 + ... + 16074.

Almost surely, 2^24728490 is an apocalyptic number.

24728490 is an abundant number, since it is smaller than the sum of its proper divisors (41765850).

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

24728490 is a wasteful number, since it uses less digits than its factorization.

24728490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30548 (or 30539 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 24728490 is about 4972.7748792802. The cubic root of 24728490 is about 291.3393850916.

The spelling of 24728490 in words is "twenty-four million, seven hundred twenty-eight thousand, four hundred ninety".