288345390 has 32 divisors (see below), whose sum is σ = 703762560. Its totient is φ = 75588384.

The previous prime is 288345371. The next prime is 288345391. The reversal of 288345390 is 93543882.

288345390 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288345391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79684 + ... + 83223.

It is an arithmetic number, because the mean of its divisors is an integer number (21992580).

Almost surely, 2^288345390 is an apocalyptic number.

288345390 is an abundant number, since it is smaller than the sum of its proper divisors (415417170).

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

288345390 is a wasteful number, since it uses less digits than its factorization.

288345390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162976.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 288345390 is about 16980.7358497799. The cubic root of 288345390 is about 660.6493379854.

The spelling of 288345390 in words is "two hundred eighty-eight million, three hundred forty-five thousand, three hundred ninety".