287364642 has 16 divisors (see below), whose sum is σ = 575016192. Its totient is φ = 95740400.

The previous prime is 287364589. The next prime is 287364643. The reversal of 287364642 is 246463782.

It is a junction number, because it is equal to n+sod(n) for n = 287364594 and 287364603.

It is not an unprimeable number, because it can be changed into a prime (287364643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2392 + ... + 24092.

It is an arithmetic number, because the mean of its divisors is an integer number (35938512).

Almost surely, 2^287364642 is an apocalyptic number.

287364642 is an abundant number, since it is smaller than the sum of its proper divisors (287651550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

287364642 is a wasteful number, since it uses less digits than its factorization.

287364642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23913.

The product of its digits is 387072, while the sum is 42.

The square root of 287364642 is about 16951.8329982336. The cubic root of 287364642 is about 659.8994658624.

The spelling of 287364642 in words is "two hundred eighty-seven million, three hundred sixty-four thousand, six hundred forty-two".