2285291639 has 4 divisors (see below), whose sum is σ = 2285538840. Its totient is φ = 2285044440.

The previous prime is 2285291629. The next prime is 2285291641. The reversal of 2285291639 is 9361925822.

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-2285291639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2285291593 and 2285291602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2285291609) 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, 109172 + ... + 128409.

It is an arithmetic number, because the mean of its divisors is an integer number (571384710).

Almost surely, 2^2285291639 is an apocalyptic number.

2285291639 is a deficient number, since it is larger than the sum of its proper divisors (247201).

2285291639 is an equidigital number, since it uses as much as digits as its factorization.

2285291639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247200.

The product of its digits is 466560, while the sum is 47.

The square root of 2285291639 is about 47804.7240238870. The cubic root of 2285291639 is about 1317.1863159390.

The spelling of 2285291639 in words is "two billion, two hundred eighty-five million, two hundred ninety-one thousand, six hundred thirty-nine".