228247434 has 12 divisors (see below), whose sum is σ = 494536146. Its totient is φ = 76082472.

The previous prime is 228247391. The next prime is 228247447. The reversal of 228247434 is 434742822.

It can be written as a sum of positive squares in only one way, i.e., 213014025 + 15233409 = 14595^2 + 3903^2 .

It is a super-2 number, since 2×228247434² = 104193782255168712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6340189 + ... + 6340224.

Almost surely, 2^228247434 is an apocalyptic number.

228247434 is an abundant number, since it is smaller than the sum of its proper divisors (266288712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228247434 is a wasteful number, since it uses less digits than its factorization.

228247434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12680421 (or 12680418 counting only the distinct ones).

The product of its digits is 86016, while the sum is 36.

The square root of 228247434 is about 15107.8600072942. The cubic root of 228247434 is about 611.1323890798.

The spelling of 228247434 in words is "two hundred twenty-eight million, two hundred forty-seven thousand, four hundred thirty-four".