228302361 has 32 divisors (see below), whose sum is σ = 387348480. Its totient is φ = 130187088.

The previous prime is 228302339. The next prime is 228302387. The reversal of 228302361 is 163203822.

It is not a de Polignac number, because 228302361 - 2¹⁸ = 228040217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (228302311) 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, 121350 + ... + 123216.

It is an arithmetic number, because the mean of its divisors is an integer number (12104640).

Almost surely, 2^228302361 is an apocalyptic number.

228302361 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

228302361 is a deficient number, since it is larger than the sum of its proper divisors (159046119).

228302361 is a wasteful number, since it uses less digits than its factorization.

228302361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530 (or 2524 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 228302361 is about 15109.6777265433. The cubic root of 228302361 is about 611.1814074862.

The spelling of 228302361 in words is "two hundred twenty-eight million, three hundred two thousand, three hundred sixty-one".