24072453409 has 3 divisors (see below), whose sum is σ = 24072608563. Its totient is φ = 24072298256.

The previous prime is 24072453403. The next prime is 24072453437. The reversal of 24072453409 is 90435427042.

The square root of 24072453409 is 155153.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 19106150625 + 4966302784 = 138225^2 + 70472^2 .

It is not a de Polignac number, because 24072453409 - 2¹⁹ = 24071929121 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (24072453403) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 77577 + ... + 232729.

Almost surely, 2^24072453409 is an apocalyptic number.

24072453409 is the 155153-rd square number.

24072453409 is the 77577-th centered octagonal number.

It is an amenable number.

24072453409 is a deficient number, since it is larger than the sum of its proper divisors (155154).

24072453409 is an frugal number, since it uses more digits than its factorization.

24072453409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310306 (or 155153 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 40.

It can be divided in two parts, 24072 and 453409, that added together give a square (477481 = 691²).

The spelling of 24072453409 in words is "twenty-four billion, seventy-two million, four hundred fifty-three thousand, four hundred nine".