1204685680 has 120 divisors (see below), whose sum is σ = 3112832016. Its totient is φ = 433213440.

The previous prime is 1204685621. The next prime is 1204685683. The reversal of 1204685680 is 865864021.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204685683) 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, 938319 + ... + 939601.

Almost surely, 2^1204685680 is an apocalyptic number.

1204685680 is a gapful number since it is divisible by the number (10) 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 1204685680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1556416008).

1204685680 is an abundant number, since it is smaller than the sum of its proper divisors (1908146336).

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

1204685680 is a wasteful number, since it uses less digits than its factorization.

1204685680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415 (or 1398 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 1204685680 is about 34708.5822239976. The cubic root of 1204685680 is about 1064.0399056019.

The spelling of 1204685680 in words is "one billion, two hundred four million, six hundred eighty-five thousand, six hundred eighty".