287049156 has 12 divisors (see below), whose sum is σ = 669781392. Its totient is φ = 95683048.

The previous prime is 287049151. The next prime is 287049173. The reversal of 287049156 is 651940782.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (287049151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11960370 + ... + 11960393.

It is an arithmetic number, because the mean of its divisors is an integer number (55815116).

Almost surely, 2^287049156 is an apocalyptic number.

It is an amenable number.

287049156 is an abundant number, since it is smaller than the sum of its proper divisors (382732236).

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

287049156 is a wasteful number, since it uses less digits than its factorization.

287049156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23920770 (or 23920768 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 287049156 is about 16942.5250774493. The cubic root of 287049156 is about 659.6578851360.

The spelling of 287049156 in words is "two hundred eighty-seven million, forty-nine thousand, one hundred fifty-six".