287242616 has 16 divisors (see below), whose sum is σ = 548742600. Its totient is φ = 140911264.

The previous prime is 287242609. The next prime is 287242639. The reversal of 287242616 is 616242782.

It is a self number, because there is not a number n which added to its sum of digits gives 287242616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338306 + ... + 339153.

Almost surely, 2^287242616 is an apocalyptic number.

It is an amenable number.

287242616 is a deficient number, since it is larger than the sum of its proper divisors (261499984).

287242616 is a wasteful number, since it uses less digits than its factorization.

287242616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677518 (or 677514 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 287242616 is about 16948.2334182652. The cubic root of 287242616 is about 659.8060464675.

The spelling of 287242616 in words is "two hundred eighty-seven million, two hundred forty-two thousand, six hundred sixteen".