228303387 has 32 divisors (see below), whose sum is σ = 385680960. Its totient is φ = 132226560.

The previous prime is 228303343. The next prime is 228303433. The reversal of 228303387 is 783303822.

It is not a de Polignac number, because 228303387 - 2⁶ = 228303323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228303307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13164 + ... + 25097.

It is an arithmetic number, because the mean of its divisors is an integer number (12052530).

Almost surely, 2^228303387 is an apocalyptic number.

228303387 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

228303387 is a deficient number, since it is larger than the sum of its proper divisors (157377573).

228303387 is a wasteful number, since it uses less digits than its factorization.

228303387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38300 (or 38294 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 228303387 is about 15109.7116782551. The cubic root of 228303387 is about 611.1823230427.

The spelling of 228303387 in words is "two hundred twenty-eight million, three hundred three thousand, three hundred eighty-seven".