228342351 has 32 divisors (see below), whose sum is σ = 328320000. Its totient is φ = 140659200.

The previous prime is 228342347. The next prime is 228342397. The reversal of 228342351 is 153243822.

It is not a de Polignac number, because 228342351 - 2² = 228342347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228340351) 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, 1147350 + ... + 1147548.

It is an arithmetic number, because the mean of its divisors is an integer number (10260000).

Almost surely, 2^228342351 is an apocalyptic number.

228342351 is a deficient number, since it is larger than the sum of its proper divisors (99977649).

228342351 is a wasteful number, since it uses less digits than its factorization.

228342351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519.

The product of its digits is 11520, while the sum is 30.

The square root of 228342351 is about 15111.0009926543. Note that the first 3 decimals coincide. The cubic root of 228342351 is about 611.2170907462.

Subtracting from 228342351 its sum of digits (30), we obtain a square (228342321 = 15111²).

The spelling of 228342351 in words is "two hundred twenty-eight million, three hundred forty-two thousand, three hundred fifty-one".