1204920 has 48 divisors (see below), whose sum is σ = 3917160. Its totient is φ = 321216.

The previous prime is 1204891. The next prime is 1204937. The reversal of 1204920 is 294021.

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

It is a junction number, because it is equal to n+sod(n) for n = 1204893 and 1204902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1314 + ... + 2033.

2^1204920 is an apocalyptic number.

1204920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1204920 is an abundant number, since it is smaller than the sum of its proper divisors (2712240).

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

1204920 is a wasteful number, since it uses less digits than its factorization.

1204920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3364 (or 3357 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1204920 is about 1097.6884803987. The cubic root of 1204920 is about 106.4108888926.

Adding to 1204920 its reverse (294021), we get a palindrome (1498941).

The spelling of 1204920 in words is "one million, two hundred four thousand, nine hundred twenty".