228647748 has 48 divisors (see below), whose sum is σ = 641822720. Its totient is φ = 61889184.

The previous prime is 228647737. The next prime is 228647759. The reversal of 228647748 is 847746822.

It is a happy number.

228647748 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (228647737) and next prime (228647759).

It is a junction number, because it is equal to n+sod(n) for n = 228647697 and 228647706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70036 + ... + 73227.

Almost surely, 2^228647748 is an apocalyptic number.

228647748 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

228647748 is an abundant number, since it is smaller than the sum of its proper divisors (413174972).

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

228647748 is a wasteful number, since it uses less digits than its factorization.

228647748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143296 (or 143294 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 48.

The square root of 228647748 is about 15121.1027375651. The cubic root of 228647748 is about 611.4894605874.

The spelling of 228647748 in words is "two hundred twenty-eight million, six hundred forty-seven thousand, seven hundred forty-eight".