288786452 has 48 divisors (see below), whose sum is σ = 547244544. Its totient is φ = 133056000.

The previous prime is 288786451. The next prime is 288786457. The reversal of 288786452 is 254687882.

It is a happy number.

It is a super-2 number, since 2×288786452² = 166795229717496608, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 288786452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288786451) 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, 217952 + ... + 219272.

It is an arithmetic number, because the mean of its divisors is an integer number (11400928).

Almost surely, 2^288786452 is an apocalyptic number.

It is an amenable number.

288786452 is a deficient number, since it is larger than the sum of its proper divisors (258458092).

288786452 is a wasteful number, since it uses less digits than its factorization.

288786452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440 (or 1438 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 50.

The square root of 288786452 is about 16993.7180157845. The cubic root of 288786452 is about 660.9860162457.

The spelling of 288786452 in words is "two hundred eighty-eight million, seven hundred eighty-six thousand, four hundred fifty-two".