228040704 has 112 divisors (see below), whose sum is σ = 676290240. Its totient is φ = 75939840.

The previous prime is 228040693. The next prime is 228040721. The reversal of 228040704 is 407040822.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 220669 + ... + 221699.

Almost surely, 2^228040704 is an apocalyptic number.

228040704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228040704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338145120).

228040704 is an abundant number, since it is smaller than the sum of its proper divisors (448249536).

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

228040704 is an equidigital number, since it uses as much as digits as its factorization.

228040704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066 (or 1036 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 228040704 is about 15101.0166545170. The cubic root of 228040704 is about 610.9478268574.

The spelling of 228040704 in words is "two hundred twenty-eight million, forty thousand, seven hundred four".