228700690 has 16 divisors (see below), whose sum is σ = 416622528. Its totient is φ = 90377776.

The previous prime is 228700673. The next prime is 228700721. The reversal of 228700690 is 96007822.

228700690 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×228700690² = 104608011212952200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136942 + ... + 138601.

It is an arithmetic number, because the mean of its divisors is an integer number (26038908).

Almost surely, 2^228700690 is an apocalyptic number.

228700690 is a deficient number, since it is larger than the sum of its proper divisors (187921838).

228700690 is a wasteful number, since it uses less digits than its factorization.

228700690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275633.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 228700690 is about 15122.8532360795. The cubic root of 228700690 is about 611.5366525045.

The spelling of 228700690 in words is "two hundred twenty-eight million, seven hundred thousand, six hundred ninety".