228795840 has 560 divisors, whose sum is σ = 1012009152. Its totient is φ = 47775744.

The previous prime is 228795839. The next prime is 228795863. The reversal of 228795840 is 48597822.

It is a tau number, because it is divible by the number of its divisors (560).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2358672 + ... + 2358768.

Almost surely, 2^228795840 is an apocalyptic number.

228795840 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 228795840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (506004576).

228795840 is an abundant number, since it is smaller than the sum of its proper divisors (783213312).

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

228795840 is a wasteful number, since it uses less digits than its factorization.

228795840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 228795840 is about 15125.9988099960. The cubic root of 228795840 is about 611.6214498653.

The spelling of 228795840 in words is "two hundred twenty-eight million, seven hundred ninety-five thousand, eight hundred forty".