288220026 has 8 divisors (see below), whose sum is σ = 576440064. Its totient is φ = 96073340.

The previous prime is 288220021. The next prime is 288220081. The reversal of 288220026 is 620022882.

It is a sphenic number, since it is the product of 3 distinct primes.

288220026 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 288219975 and 288220002.

It is not an unprimeable number, because it can be changed into a prime (288220021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24018330 + ... + 24018341.

It is an arithmetic number, because the mean of its divisors is an integer number (72055008).

Almost surely, 2^288220026 is an apocalyptic number.

288220026 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

288220026 is a wasteful number, since it uses less digits than its factorization.

288220026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48036676.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 288220026 is about 16977.0440890044. The cubic root of 288220026 is about 660.5535805453.

The spelling of 288220026 in words is "two hundred eighty-eight million, two hundred twenty thousand, twenty-six".