228737148 has 12 divisors (see below), whose sum is σ = 533720040. Its totient is φ = 76245712.

The previous prime is 228737111. The next prime is 228737161. The reversal of 228737148 is 841737822.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9530703 + ... + 9530726.

It is an arithmetic number, because the mean of its divisors is an integer number (44476670).

Almost surely, 2^228737148 is an apocalyptic number.

It is an amenable number.

228737148 is an abundant number, since it is smaller than the sum of its proper divisors (304982892).

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

228737148 is a wasteful number, since it uses less digits than its factorization.

228737148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19061436 (or 19061434 counting only the distinct ones).

The product of its digits is 150528, while the sum is 42.

The square root of 228737148 is about 15124.0585822722. The cubic root of 228737148 is about 611.5691465308.

The spelling of 228737148 in words is "two hundred twenty-eight million, seven hundred thirty-seven thousand, one hundred forty-eight".