287425322 has 16 divisors (see below), whose sum is σ = 451024200. Its totient is φ = 137195520.

The previous prime is 287425301. The next prime is 287425337. The reversal of 287425322 is 223524782.

It can be written as a sum of positive squares in 4 ways, for example, as 204232681 + 83192641 = 14291^2 + 9121^2 .

It is a super-2 number, since 2×287425322² = 165226631453607368, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22679 + ... + 33002.

Almost surely, 2^287425322 is an apocalyptic number.

287425322 is a deficient number, since it is larger than the sum of its proper divisors (163598878).

287425322 is a wasteful number, since it uses less digits than its factorization.

287425322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55801.

The product of its digits is 53760, while the sum is 35.

The square root of 287425322 is about 16953.6226807134. The cubic root of 287425322 is about 659.9459107801.

The spelling of 287425322 in words is "two hundred eighty-seven million, four hundred twenty-five thousand, three hundred twenty-two".