228613550 has 24 divisors (see below), whose sum is σ = 463878792. Its totient is φ = 83132000.

The previous prime is 228613549. The next prime is 228613621. The reversal of 228613550 is 55316822.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 207281 + ... + 208380.

It is an arithmetic number, because the mean of its divisors is an integer number (19328283).

Almost surely, 2^228613550 is an apocalyptic number.

228613550 is an abundant number, since it is smaller than the sum of its proper divisors (235265242).

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

228613550 is a wasteful number, since it uses less digits than its factorization.

228613550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415684 (or 415679 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 228613550 is about 15119.9718915083. The cubic root of 228613550 is about 611.4589729933.

The spelling of 228613550 in words is "two hundred twenty-eight million, six hundred thirteen thousand, five hundred fifty".