288273381 has 8 divisors (see below), whose sum is σ = 419306784. Its totient is φ = 174711120.

The previous prime is 288273379. The next prime is 288273409. The reversal of 288273381 is 183372882.

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

It is not a de Polignac number, because 288273381 - 2¹ = 288273379 is a prime.

It is a super-2 number, since 2×288273381² = 166203084386342322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288273331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4367746 + ... + 4367811.

It is an arithmetic number, because the mean of its divisors is an integer number (52413348).

Almost surely, 2^288273381 is an apocalyptic number.

It is an amenable number.

288273381 is a deficient number, since it is larger than the sum of its proper divisors (131033403).

288273381 is a wasteful number, since it uses less digits than its factorization.

288273381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8735571.

The product of its digits is 129024, while the sum is 42.

The square root of 288273381 is about 16978.6154029120. The cubic root of 288273381 is about 660.5943383675.

The spelling of 288273381 in words is "two hundred eighty-eight million, two hundred seventy-three thousand, three hundred eighty-one".