286122881 has 8 divisors (see below), whose sum is σ = 328562400. Its totient is φ = 246421440.

The previous prime is 286122871. The next prime is 286122899. The reversal of 286122881 is 188221682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 286122881 - 2¹⁴ = 286106497 is a prime.

It is a super-2 number, since 2×286122881² = 163732606063480322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (286122821) 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, 684296 + ... + 684713.

It is an arithmetic number, because the mean of its divisors is an integer number (41070300).

Almost surely, 2^286122881 is an apocalyptic number.

It is an amenable number.

286122881 is a deficient number, since it is larger than the sum of its proper divisors (42439519).

286122881 is a wasteful number, since it uses less digits than its factorization.

286122881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369039.

The product of its digits is 24576, while the sum is 38.

The square root of 286122881 is about 16915.1671880594. The cubic root of 286122881 is about 658.9475735498.

The spelling of 286122881 in words is "two hundred eighty-six million, one hundred twenty-two thousand, eight hundred eighty-one".