287241396 has 24 divisors (see below), whose sum is σ = 721786464. Its totient is φ = 88381920.

The previous prime is 287241377. The next prime is 287241403. The reversal of 287241396 is 693142782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 920490 + ... + 920801.

It is an arithmetic number, because the mean of its divisors is an integer number (30074436).

Almost surely, 2^287241396 is an apocalyptic number.

287241396 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

287241396 is an abundant number, since it is smaller than the sum of its proper divisors (434545068).

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

287241396 is a wasteful number, since it uses less digits than its factorization.

287241396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1841311 (or 1841309 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 287241396 is about 16948.1974262752. The cubic root of 287241396 is about 659.8051123390.

The spelling of 287241396 in words is "two hundred eighty-seven million, two hundred forty-one thousand, three hundred ninety-six".