228977100 has 216 divisors, whose sum is σ = 794167920. Its totient is φ = 54720000.

The previous prime is 228977093. The next prime is 228977141. The reversal of 228977100 is 1779822.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 999786 + ... + 1000014.

Almost surely, 2^228977100 is an apocalyptic number.

228977100 is a gapful number since it is divisible by the number (20) 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 228977100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (397083960).

228977100 is an abundant number, since it is smaller than the sum of its proper divisors (565190820).

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

228977100 is a wasteful number, since it uses less digits than its factorization.

228977100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 228977100 is about 15131.9892942072. The cubic root of 228977100 is about 611.7829231399.

The spelling of 228977100 in words is "two hundred twenty-eight million, nine hundred seventy-seven thousand, one hundred".