2279226831 has 16 divisors (see below), whose sum is σ = 3477625344. Its totient is φ = 1300721184.

The previous prime is 2279226823. The next prime is 2279226863. The reversal of 2279226831 is 1386229722.

It is not a de Polignac number, because 2279226831 - 2³ = 2279226823 is a prime.

It is a super-2 number, since 2×2279226831² = 10389749894300605122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2279226811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53971 + ... + 86436.

It is an arithmetic number, because the mean of its divisors is an integer number (217351584).

Almost surely, 2^2279226831 is an apocalyptic number.

2279226831 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2279226831 is a deficient number, since it is larger than the sum of its proper divisors (1198398513).

2279226831 is a wasteful number, since it uses less digits than its factorization.

2279226831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141190.

The product of its digits is 145152, while the sum is 42.

The square root of 2279226831 is about 47741.2487373340. The cubic root of 2279226831 is about 1316.0200812323.

The spelling of 2279226831 in words is "two billion, two hundred seventy-nine million, two hundred twenty-six thousand, eight hundred thirty-one".