1283604 has 72 divisors (see below), whose sum is σ = 3638880. Its totient is φ = 350784.

The previous prime is 1283603. The next prime is 1283677. The reversal of 1283604 is 4063821.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21727 + ... + 21785.

It is an arithmetic number, because the mean of its divisors is an integer number (50540).

2^1283604 is an apocalyptic number.

1283604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1283604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1819440).

1283604 is an abundant number, since it is smaller than the sum of its proper divisors (2355276).

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

1283604 is a wasteful number, since it uses less digits than its factorization.

1283604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1283604 is about 1132.9624883464. The cubic root of 1283604 is about 108.6785129336.

The spelling of 1283604 in words is "one million, two hundred eighty-three thousand, six hundred four".