286651442 has 32 divisors (see below), whose sum is σ = 564295680. Its totient is φ = 105803280.

The previous prime is 286651429. The next prime is 286651447. The reversal of 286651442 is 244156682.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 286651396 and 286651405.

It is not an unprimeable number, because it can be changed into a prime (286651447) 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 15 ways as a sum of consecutive naturals, for example, 46058 + ... + 51909.

It is an arithmetic number, because the mean of its divisors is an integer number (17634240).

Almost surely, 2^286651442 is an apocalyptic number.

286651442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

286651442 is a deficient number, since it is larger than the sum of its proper divisors (277644238).

286651442 is a wasteful number, since it uses less digits than its factorization.

286651442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98006.

The product of its digits is 92160, while the sum is 38.

The square root of 286651442 is about 16930.7838566323. The cubic root of 286651442 is about 659.3530866597.

The spelling of 286651442 in words is "two hundred eighty-six million, six hundred fifty-one thousand, four hundred forty-two".