228683686 has 48 divisors (see below), whose sum is σ = 437355072. Its totient is φ = 88678800.

The previous prime is 228683681. The next prime is 228683729. The reversal of 228683686 is 686386822.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228683681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 330601 + ... + 331291.

It is an arithmetic number, because the mean of its divisors is an integer number (9111564).

Almost surely, 2^228683686 is an apocalyptic number.

228683686 is a deficient number, since it is larger than the sum of its proper divisors (208671386).

228683686 is a wasteful number, since it uses less digits than its factorization.

228683686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025 (or 1018 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 49.

The square root of 228683686 is about 15122.2910301316. The cubic root of 228683686 is about 611.5214961198.

The spelling of 228683686 in words is "two hundred twenty-eight million, six hundred eighty-three thousand, six hundred eighty-six".