1283438 has 8 divisors (see below), whose sum is σ = 2073288. Its totient is φ = 592344.

The previous prime is 1283437. The next prime is 1283441. The reversal of 1283438 is 8343821.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1283438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283437) 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, 24656 + ... + 24707.

It is an arithmetic number, because the mean of its divisors is an integer number (259161).

2^1283438 is an apocalyptic number.

1283438 is a deficient number, since it is larger than the sum of its proper divisors (789850).

1283438 is a wasteful number, since it uses less digits than its factorization.

1283438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49378.

The product of its digits is 4608, while the sum is 29.

The square root of 1283438 is about 1132.8892267119. The cubic root of 1283438 is about 108.6738278409.

The spelling of 1283438 in words is "one million, two hundred eighty-three thousand, four hundred thirty-eight".