287266272 has 48 divisors (see below), whose sum is σ = 798435792. Its totient is φ = 90122240.

The previous prime is 287266267. The next prime is 287266277. The reversal of 287266272 is 272662782.

It is an interprime number because it is at equal distance from previous prime (287266267) and next prime (287266277).

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×287266272² = 165043822057555968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287266277) 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, 86379 + ... + 89642.

It is an arithmetic number, because the mean of its divisors is an integer number (16634079).

Almost surely, 2^287266272 is an apocalyptic number.

It is an amenable number.

287266272 is an abundant number, since it is smaller than the sum of its proper divisors (511169520).

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

287266272 is a wasteful number, since it uses less digits than its factorization.

287266272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176051 (or 176043 counting only the distinct ones).

The product of its digits is 225792, while the sum is 42.

The square root of 287266272 is about 16948.9312937424. The cubic root of 287266272 is about 659.8241588488.

The spelling of 287266272 in words is "two hundred eighty-seven million, two hundred sixty-six thousand, two hundred seventy-two".