228559817290 has 64 divisors (see below), whose sum is σ = 498256738560. Its totient is φ = 73815759360.

The previous prime is 228559817287. The next prime is 228559817309. The reversal of 228559817290 is 92718955822.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1289832 + ... + 1456291.

It is an arithmetic number, because the mean of its divisors is an integer number (7785261540).

Almost surely, 2^228559817290 is an apocalyptic number.

228559817290 is an abundant number, since it is smaller than the sum of its proper divisors (269696921270).

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

228559817290 is a wasteful number, since it uses less digits than its factorization.

228559817290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2746207.

The product of its (nonzero) digits is 7257600, while the sum is 58.

The spelling of 228559817290 in words is "two hundred twenty-eight billion, five hundred fifty-nine million, eight hundred seventeen thousand, two hundred ninety".