24493985 has 4 divisors (see below), whose sum is σ = 29392788. Its totient is φ = 19595184.

The previous prime is 24493969. The next prime is 24494017. The reversal of 24493985 is 58939442.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14432401 + 10061584 = 3799^2 + 3172^2 .

It is a cyclic number.

It is not a de Polignac number, because 24493985 - 2⁴ = 24493969 is a prime.

It is a super-3 number, since 3×24493985³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2449394 + ... + 2449403.

It is an arithmetic number, because the mean of its divisors is an integer number (7348197).

Almost surely, 2^24493985 is an apocalyptic number.

It is an amenable number.

24493985 is a deficient number, since it is larger than the sum of its proper divisors (4898803).

24493985 is an equidigital number, since it uses as much as digits as its factorization.

24493985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4898802.

The product of its digits is 311040, while the sum is 44.

The square root of 24493985 is about 4949.1398242523. The cubic root of 24493985 is about 290.4155161299.

The spelling of 24493985 in words is "twenty-four million, four hundred ninety-three thousand, nine hundred eighty-five".