228279849 has 16 divisors (see below), whose sum is σ = 348868608. Its totient is φ = 130065552.

The previous prime is 228279817. The next prime is 228279869. The reversal of 228279849 is 948972822.

It is a happy number.

228279849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228279849 - 2⁵ = 228279817 is a prime.

It is a super-2 number, since 2×228279849² = 104223378918925602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (228279809) 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, 8377 + ... + 22950.

It is an arithmetic number, because the mean of its divisors is an integer number (21804288).

Almost surely, 2^228279849 is an apocalyptic number.

It is an amenable number.

228279849 is a deficient number, since it is larger than the sum of its proper divisors (120588759).

228279849 is a wasteful number, since it uses less digits than its factorization.

228279849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31684.

The product of its digits is 1161216, while the sum is 51.

The square root of 228279849 is about 15108.9327551618. The cubic root of 228279849 is about 611.1613180924.

The spelling of 228279849 in words is "two hundred twenty-eight million, two hundred seventy-nine thousand, eight hundred forty-nine".