2890142447 has 4 divisors (see below), whose sum is σ = 2890263216. Its totient is φ = 2890021680.

The previous prime is 2890142329. The next prime is 2890142449. The reversal of 2890142447 is 7442410982.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7442410982 = 2 ⋅3721205491.

It is a cyclic number.

It is not a de Polignac number, because 2890142447 - 2⁸ = 2890142191 is a prime.

It is a super-2 number, since 2×2890142447² = 16705846727902295618, 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 (2890142449) 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, 11054 + ... + 76827.

It is an arithmetic number, because the mean of its divisors is an integer number (722565804).

Almost surely, 2^2890142447 is an apocalyptic number.

2890142447 is a deficient number, since it is larger than the sum of its proper divisors (120769).

2890142447 is an equidigital number, since it uses as much as digits as its factorization.

2890142447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120768.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 2890142447 is about 53760.0450799662. The cubic root of 2890142447 is about 1424.4255317748.

The spelling of 2890142447 in words is "two billion, eight hundred ninety million, one hundred forty-two thousand, four hundred forty-seven".