1204251660 has 72 divisors (see below), whose sum is σ = 3657968496. Its totient is φ = 320688000.

The previous prime is 1204251649. The next prime is 1204251667. The reversal of 1204251660 is 661524021.

It is a super-2 number, since 2×1204251660² = 2900444121225511200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1204251667) 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, 137410 + ... + 145910.

It is an arithmetic number, because the mean of its divisors is an integer number (50805118).

Almost surely, 2^1204251660 is an apocalyptic number.

1204251660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1204251660 is an abundant number, since it is smaller than the sum of its proper divisors (2453716836).

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

1204251660 is a wasteful number, since it uses less digits than its factorization.

1204251660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9303 (or 9298 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1204251660 is about 34702.3293166323. The cubic root of 1204251660 is about 1063.9121073779.

Adding to 1204251660 its reverse (661524021), we get a palindrome (1865775681).

The spelling of 1204251660 in words is "one billion, two hundred four million, two hundred fifty-one thousand, six hundred sixty".