228143774 has 16 divisors (see below), whose sum is σ = 362715408. Its totient is φ = 107252352.

The previous prime is 228143759. The next prime is 228143809. The reversal of 228143774 is 477341822.

It is a super-2 number, since 2×228143774² = 104099163229926152, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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, 37532 + ... + 43184.

It is an arithmetic number, because the mean of its divisors is an integer number (22669713).

Almost surely, 2^228143774 is an apocalyptic number.

228143774 is a deficient number, since it is larger than the sum of its proper divisors (134571634).

228143774 is a wasteful number, since it uses less digits than its factorization.

228143774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6859.

The product of its digits is 75264, while the sum is 38.

The square root of 228143774 is about 15104.4289531250. The cubic root of 228143774 is about 611.0398585380.

The spelling of 228143774 in words is "two hundred twenty-eight million, one hundred forty-three thousand, seven hundred seventy-four".