24081989 has 4 divisors (see below), whose sum is σ = 25129056. Its totient is φ = 23034924.

The previous prime is 24081983. The next prime is 24081991. The reversal of 24081989 is 98918042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 24081989 - 2⁴ = 24081973 is a prime.

It is a super-2 number, since 2×24081989² = 1159884388392242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24081983) 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, 523499 + ... + 523544.

It is an arithmetic number, because the mean of its divisors is an integer number (6282264).

Almost surely, 2^24081989 is an apocalyptic number.

It is an amenable number.

24081989 is a deficient number, since it is larger than the sum of its proper divisors (1047067).

24081989 is a wasteful number, since it uses less digits than its factorization.

24081989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047066.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 24081989 is about 4907.3403183395. The cubic root of 24081989 is about 288.7780090644.

The spelling of 24081989 in words is "twenty-four million, eighty-one thousand, nine hundred eighty-nine".