2228857031 has 4 divisors (see below), whose sum is σ = 2305714200. Its totient is φ = 2151999864.

The previous prime is 2228857019. The next prime is 2228857039. The reversal of 2228857031 is 1307588222.

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-2228857031 is a prime.

It is a super-2 number, since 2×2228857031² = 9935607329276269922, 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 (2228857039) 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, 38428541 + ... + 38428598.

It is an arithmetic number, because the mean of its divisors is an integer number (576428550).

Almost surely, 2^2228857031 is an apocalyptic number.

2228857031 is a deficient number, since it is larger than the sum of its proper divisors (76857169).

2228857031 is an equidigital number, since it uses as much as digits as its factorization.

2228857031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76857168.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 2228857031 is about 47210.7724041876. The cubic root of 2228857031 is about 1306.2533099250.

The spelling of 2228857031 in words is "two billion, two hundred twenty-eight million, eight hundred fifty-seven thousand, thirty-one".