228285384 has 32 divisors (see below), whose sum is σ = 604285920. Its totient is φ = 71618816.

The previous prime is 228285371. The next prime is 228285397. The reversal of 228285384 is 483582822.

It is an interprime number because it is at equal distance from previous prime (228285371) and next prime (228285397).

It is a super-2 number, since 2×228285384² = 104228433096054912, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279354 + ... + 280169.

It is an arithmetic number, because the mean of its divisors is an integer number (18883935).

Almost surely, 2^228285384 is an apocalyptic number.

228285384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

228285384 is an abundant number, since it is smaller than the sum of its proper divisors (376000536).

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

228285384 is a wasteful number, since it uses less digits than its factorization.

228285384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559549 (or 559545 counting only the distinct ones).

The product of its digits is 245760, while the sum is 42.

The square root of 228285384 is about 15109.1159238388. The cubic root of 228285384 is about 611.1662575714.

The spelling of 228285384 in words is "two hundred twenty-eight million, two hundred eighty-five thousand, three hundred eighty-four".