228652290 has 24 divisors (see below), whose sum is σ = 594496188. Its totient is φ = 60973920.

The previous prime is 228652189. The next prime is 228652309. The reversal of 228652290 is 92256822.

It can be written as a sum of positive squares in 2 ways, for example, as 192182769 + 36469521 = 13863^2 + 6039^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1270201 + ... + 1270380.

Almost surely, 2^228652290 is an apocalyptic number.

228652290 is an abundant number, since it is smaller than the sum of its proper divisors (365843898).

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

228652290 is a wasteful number, since it uses less digits than its factorization.

228652290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2540594 (or 2540591 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 228652290 is about 15121.2529242785. The cubic root of 228652290 is about 611.4935095620.

The spelling of 228652290 in words is "two hundred twenty-eight million, six hundred fifty-two thousand, two hundred ninety".