228029733 has 18 divisors (see below), whose sum is σ = 332633574. Its totient is φ = 150531024.

The previous prime is 228029723. The next prime is 228029761. The reversal of 228029733 is 337920822.

It can be written as a sum of positive squares in only one way, i.e., 227617569 + 412164 = 15087^2 + 642^2 .

It is not a de Polignac number, because 228029733 - 2⁵ = 228029701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228029723) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 101935 + ... + 104147.

It is an arithmetic number, because the mean of its divisors is an integer number (18479643).

Almost surely, 2^228029733 is an apocalyptic number.

It is an amenable number.

228029733 is a deficient number, since it is larger than the sum of its proper divisors (104603841).

228029733 is a wasteful number, since it uses less digits than its factorization.

228029733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433 (or 2323 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 228029733 is about 15100.6533964594. The cubic root of 228029733 is about 610.9380291678.

The spelling of 228029733 in words is "two hundred twenty-eight million, twenty-nine thousand, seven hundred thirty-three".