228638552 has 32 divisors (see below), whose sum is σ = 466830000. Its totient is φ = 104565888.

The previous prime is 228638551. The next prime is 228638573. The reversal of 228638552 is 255836822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228638551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21527 + ... + 30342.

Almost surely, 2^228638552 is an apocalyptic number.

It is an amenable number.

228638552 is an abundant number, since it is smaller than the sum of its proper divisors (238191448).

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

228638552 is a wasteful number, since it uses less digits than its factorization.

228638552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51923 (or 51919 counting only the distinct ones).

The product of its digits is 230400, while the sum is 41.

The square root of 228638552 is about 15120.7986561557. The cubic root of 228638552 is about 611.4812626315.

The spelling of 228638552 in words is "two hundred twenty-eight million, six hundred thirty-eight thousand, five hundred fifty-two".