228249340 has 24 divisors (see below), whose sum is σ = 522898992. Its totient is φ = 82999680.

The previous prime is 228249331. The next prime is 228249377. The reversal of 228249340 is 43942822.

228249340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×228249340² = 104195522420871200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 228249296 and 228249305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518529 + ... + 518968.

It is an arithmetic number, because the mean of its divisors is an integer number (21787458).

Almost surely, 2^228249340 is an apocalyptic number.

228249340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228249340 is an abundant number, since it is smaller than the sum of its proper divisors (294649652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228249340 is a wasteful number, since it uses less digits than its factorization.

228249340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037517 (or 1037515 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 228249340 is about 15107.9230869104. The cubic root of 228249340 is about 611.1340901797.

The spelling of 228249340 in words is "two hundred twenty-eight million, two hundred forty-nine thousand, three hundred forty".