286376442 has 64 divisors (see below), whose sum is σ = 640120320. Its totient is φ = 84680000.

The previous prime is 286376413. The next prime is 286376449. The reversal of 286376442 is 244673682.

It is a super-2 number, since 2×286376442² = 164022933065158728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 286376394 and 286376403.

It is not an unprimeable number, because it can be changed into a prime (286376449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 977248 + ... + 977540.

It is an arithmetic number, because the mean of its divisors is an integer number (10001880).

Almost surely, 2^286376442 is an apocalyptic number.

286376442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 286376442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320060160).

286376442 is an abundant number, since it is smaller than the sum of its proper divisors (353743878).

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

286376442 is a wasteful number, since it uses less digits than its factorization.

286376442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619.

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

The square root of 286376442 is about 16922.6606064177. The cubic root of 286376442 is about 659.1421683490.

The spelling of 286376442 in words is "two hundred eighty-six million, three hundred seventy-six thousand, four hundred forty-two".