228136704 has 72 divisors (see below), whose sum is σ = 612218880. Its totient is φ = 75414528.

The previous prime is 228136697. The next prime is 228136739. The reversal of 228136704 is 407631822.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96367 + ... + 98705.

It is an arithmetic number, because the mean of its divisors is an integer number (8503040).

Almost surely, 2^228136704 is an apocalyptic number.

228136704 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 228136704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306109440).

228136704 is an abundant number, since it is smaller than the sum of its proper divisors (384082176).

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

228136704 is a wasteful number, since it uses less digits than its factorization.

228136704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2485 (or 2471 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 228136704 is about 15104.1949139966. The cubic root of 228136704 is about 611.0335465878.

The spelling of 228136704 in words is "two hundred twenty-eight million, one hundred thirty-six thousand, seven hundred four".