2872040243 has 4 divisors (see below), whose sum is σ = 2872315728. Its totient is φ = 2871764760.

The previous prime is 2872040239. The next prime is 2872040251. The reversal of 2872040243 is 3420402782.

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

It is a cyclic number.

It is not a de Polignac number, because 2872040243 - 2² = 2872040239 is a prime.

It is a super-2 number, since 2×2872040243² = 16497230314822998098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2872040263) 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, 121463 + ... + 143168.

It is an arithmetic number, because the mean of its divisors is an integer number (718078932).

Almost surely, 2^2872040243 is an apocalyptic number.

2872040243 is a deficient number, since it is larger than the sum of its proper divisors (275485).

2872040243 is a wasteful number, since it uses less digits than its factorization.

2872040243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275484.

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 2872040243 is about 53591.4194904371. The cubic root of 2872040243 is about 1421.4453713584.

The spelling of 2872040243 in words is "two billion, eight hundred seventy-two million, forty thousand, two hundred forty-three".