2291470243 has 12 divisors (see below), whose sum is σ = 2523579408. Its totient is φ = 2076473520.

The previous prime is 2291470231. The next prime is 2291470331. The reversal of 2291470243 is 3420741922.

It is not a de Polignac number, because 2291470243 - 2⁹ = 2291469731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2291470199 and 2291470208.

It is not an unprimeable number, because it can be changed into a prime (2291470213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129688 + ... + 146293.

It is an arithmetic number, because the mean of its divisors is an integer number (210298284).

Almost surely, 2^2291470243 is an apocalyptic number.

2291470243 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2291470243 is a deficient number, since it is larger than the sum of its proper divisors (232109165).

2291470243 is a wasteful number, since it uses less digits than its factorization.

2291470243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276042 (or 276023 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 2291470243 is about 47869.3037655657. The cubic root of 2291470243 is about 1318.3723132519.

The spelling of 2291470243 in words is "two billion, two hundred ninety-one million, four hundred seventy thousand, two hundred forty-three".