1283838 has 8 divisors (see below), whose sum is σ = 2567688. Its totient is φ = 427944.

The previous prime is 1283831. The next prime is 1283839. The reversal of 1283838 is 8383821.

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

1283838 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1283799 and 1283808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283831) 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, 106981 + ... + 106992.

It is an arithmetic number, because the mean of its divisors is an integer number (320961).

2^1283838 is an apocalyptic number.

1283838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1283838 is a wasteful number, since it uses less digits than its factorization.

1283838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213978.

The product of its digits is 9216, while the sum is 33.

The square root of 1283838 is about 1133.0657527258. The cubic root of 1283838 is about 108.6851165348.

The spelling of 1283838 in words is "one million, two hundred eighty-three thousand, eight hundred thirty-eight".