228235743 has 12 divisors (see below), whose sum is σ = 332875920. Its totient is φ = 150679296.

The previous prime is 228235723. The next prime is 228235753. The reversal of 228235743 is 347532822.

228235743 is a `hidden beast` number, since 2 + 2 + 82 + 3 + 574 + 3 = 666.

It is not a de Polignac number, because 228235743 - 2²² = 224041439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 228235698 and 228235707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228235703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122178 + ... + 124031.

It is an arithmetic number, because the mean of its divisors is an integer number (27739660).

Almost surely, 2^228235743 is an apocalyptic number.

228235743 is a deficient number, since it is larger than the sum of its proper divisors (104640177).

228235743 is a wasteful number, since it uses less digits than its factorization.

228235743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246318 (or 246315 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 228235743 is about 15107.4730845367. The cubic root of 228235743 is about 611.1219546861.

It can be divided in two parts, 2282 and 35743, that added together give a square (38025 = 195²).

The spelling of 228235743 in words is "two hundred twenty-eight million, two hundred thirty-five thousand, seven hundred forty-three".