1204938580 has 72 divisors (see below), whose sum is σ = 2827937448. Its totient is φ = 429705216.

The previous prime is 1204938571. The next prime is 1204938583. The reversal of 1204938580 is 858394021.

It can be written as a sum of positive squares in 4 ways, for example, as 646278084 + 558660496 = 25422^2 + 23636^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204938583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117832 + ... + 127648.

It is an arithmetic number, because the mean of its divisors is an integer number (39276909).

Almost surely, 2^1204938580 is an apocalyptic number.

1204938580 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 1204938580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1413968724).

1204938580 is an abundant number, since it is smaller than the sum of its proper divisors (1622998868).

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

1204938580 is a wasteful number, since it uses less digits than its factorization.

1204938580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9881 (or 9860 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 1204938580 is about 34712.2252239755. The cubic root of 1204938580 is about 1064.1143584566.

The spelling of 1204938580 in words is "one billion, two hundred four million, nine hundred thirty-eight thousand, five hundred eighty".