288749284 has 48 divisors (see below), whose sum is σ = 545529600. Its totient is φ = 133249536.

The previous prime is 288749269. The next prime is 288749299. The reversal of 288749284 is 482947882.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (288749269) and next prime (288749299).

It is a super-2 number, since 2×288749284² = 166752298021025312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1208037 + ... + 1208275.

It is an arithmetic number, because the mean of its divisors is an integer number (11365200).

Almost surely, 2^288749284 is an apocalyptic number.

It is an amenable number.

288749284 is a deficient number, since it is larger than the sum of its proper divisors (256780316).

288749284 is a wasteful number, since it uses less digits than its factorization.

288749284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532 (or 530 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 52.

The square root of 288749284 is about 16992.6244000154. The cubic root of 288749284 is about 660.9576578259.

The spelling of 288749284 in words is "two hundred eighty-eight million, seven hundred forty-nine thousand, two hundred eighty-four".