287980324 has 48 divisors (see below), whose sum is σ = 539607600. Its totient is φ = 134217216.

The previous prime is 287980279. The next prime is 287980333. The reversal of 287980324 is 423089782.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 141134400 + 146845924 = 11880^2 + 12118^2 .

It is a super-2 number, since 2×287980324² = 165865334022289952, 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, 982722 + ... + 983014.

It is an arithmetic number, because the mean of its divisors is an integer number (11241825).

Almost surely, 2^287980324 is an apocalyptic number.

It is an amenable number.

287980324 is a deficient number, since it is larger than the sum of its proper divisors (251627276).

287980324 is a wasteful number, since it uses less digits than its factorization.

287980324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592 (or 590 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 287980324 is about 16969.9830288660. The cubic root of 287980324 is about 660.3704103807.

The spelling of 287980324 in words is "two hundred eighty-seven million, nine hundred eighty thousand, three hundred twenty-four".