288990353 has 4 divisors (see below), whose sum is σ = 289082340. Its totient is φ = 288898368.

The previous prime is 288990347. The next prime is 288990379. The reversal of 288990353 is 353099882.

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

It can be written as a sum of positive squares in 2 ways, for example, as 145757329 + 143233024 = 12073^2 + 11968^2 .

It is a cyclic number.

It is not a de Polignac number, because 288990353 - 2¹⁴ = 288973969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 288990298 and 288990307.

It is not an unprimeable number, because it can be changed into a prime (288990343) 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, 41108 + ... + 47621.

It is an arithmetic number, because the mean of its divisors is an integer number (72270585).

Almost surely, 2^288990353 is an apocalyptic number.

It is an amenable number.

288990353 is a deficient number, since it is larger than the sum of its proper divisors (91987).

288990353 is an equidigital number, since it uses as much as digits as its factorization.

288990353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91986.

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 288990353 is about 16999.7162623380. The cubic root of 288990353 is about 661.1415452432.

The spelling of 288990353 in words is "two hundred eighty-eight million, nine hundred ninety thousand, three hundred fifty-three".