288880222 has 4 divisors (see below), whose sum is σ = 433320336. Its totient is φ = 144440110.

The previous prime is 288880181. The next prime is 288880231. The reversal of 288880222 is 222088882.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72220054 + ... + 72220057.

It is an arithmetic number, because the mean of its divisors is an integer number (108330084).

Almost surely, 2^288880222 is an apocalyptic number.

288880222 is a deficient number, since it is larger than the sum of its proper divisors (144440114).

288880222 is a wasteful number, since it uses less digits than its factorization.

288880222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144440113.

The product of its (nonzero) digits is 65536, while the sum is 40.

The square root of 288880222 is about 16996.4767525508. The cubic root of 288880222 is about 661.0575500164.

The spelling of 288880222 in words is "two hundred eighty-eight million, eight hundred eighty thousand, two hundred twenty-two".