288890864 has 10 divisors (see below), whose sum is σ = 559726080. Its totient is φ = 144445424.

The previous prime is 288890851. The next prime is 288890867. The reversal of 288890864 is 468098882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288890867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9027824 + ... + 9027855.

It is an arithmetic number, because the mean of its divisors is an integer number (55972608).

Almost surely, 2^288890864 is an apocalyptic number.

It is an amenable number.

288890864 is a deficient number, since it is larger than the sum of its proper divisors (270835216).

288890864 is a wasteful number, since it uses less digits than its factorization.

288890864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18055687 (or 18055681 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 53.

The square root of 288890864 is about 16996.7898145503. The cubic root of 288890864 is about 661.0656674384.

The spelling of 288890864 in words is "two hundred eighty-eight million, eight hundred ninety thousand, eight hundred sixty-four".