228129692 has 36 divisors (see below), whose sum is σ = 465336144. Its totient is φ = 97574400.

The previous prime is 228129683. The next prime is 228129701. The reversal of 228129692 is 296921822.

It is an interprime number because it is at equal distance from previous prime (228129683) and next prime (228129701).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141692 + ... + 143292.

It is an arithmetic number, because the mean of its divisors is an integer number (12926004).

Almost surely, 2^228129692 is an apocalyptic number.

It is an amenable number.

228129692 is an abundant number, since it is smaller than the sum of its proper divisors (237206452).

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

228129692 is a wasteful number, since it uses less digits than its factorization.

228129692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346 (or 2337 counting only the distinct ones).

The product of its digits is 62208, while the sum is 41.

The square root of 228129692 is about 15103.9627912677. The cubic root of 228129692 is about 611.0272862900.

The spelling of 228129692 in words is "two hundred twenty-eight million, one hundred twenty-nine thousand, six hundred ninety-two".