1204812 has 54 divisors (see below), whose sum is σ = 3547908. Its totient is φ = 343728.

The previous prime is 1204787. The next prime is 1204813. The reversal of 1204812 is 2184021.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1204813) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1423 + ... + 2105.

It is an arithmetic number, because the mean of its divisors is an integer number (65702).

2^1204812 is an apocalyptic number.

1204812 is a gapful number since it is divisible by the number (12) 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 1204812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1773954).

1204812 is an abundant number, since it is smaller than the sum of its proper divisors (2343096).

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

1204812 is a wasteful number, since it uses less digits than its factorization.

1204812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707 (or 695 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1204812 is about 1097.6392850112. The cubic root of 1204812 is about 106.4077095060.

Adding to 1204812 its reverse (2184021), we get a palindrome (3388833).

It can be divided in two parts, 1204 and 812, that added together give a triangular number (2016 = T₆₃).

The spelling of 1204812 in words is "one million, two hundred four thousand, eight hundred twelve".