2043453239 has 4 divisors (see below), whose sum is σ = 2132299056. Its totient is φ = 1954607424.

The previous prime is 2043453233. The next prime is 2043453281. The reversal of 2043453239 is 9323543402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2043453239 is a prime.

It is a super-2 number, since 2×2043453239² = 8351402279959182242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2043453199 and 2043453208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043453233) 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, 44422874 + ... + 44422919.

It is an arithmetic number, because the mean of its divisors is an integer number (533074764).

Almost surely, 2^2043453239 is an apocalyptic number.

2043453239 is a deficient number, since it is larger than the sum of its proper divisors (88845817).

2043453239 is an equidigital number, since it uses as much as digits as its factorization.

2043453239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88845816.

The product of its (nonzero) digits is 77760, while the sum is 35.

The square root of 2043453239 is about 45204.5709967477. The cubic root of 2043453239 is about 1268.9803622773.

The spelling of 2043453239 in words is "two billion, forty-three million, four hundred fifty-three thousand, two hundred thirty-nine".