1304505900 has 216 divisors, whose sum is σ = 4198731264. Its totient is φ = 338688000.

The previous prime is 1304505899. The next prime is 1304505913. The reversal of 1304505900 is 95054031.

1304505900 is a `hidden beast` number, since 1 + 30 + 45 + 0 + 590 + 0 = 666.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10271637 + ... + 10271763.

Almost surely, 2^1304505900 is an apocalyptic number.

1304505900 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 1304505900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2099365632).

1304505900 is an abundant number, since it is smaller than the sum of its proper divisors (2894225364).

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

1304505900 is a wasteful number, since it uses less digits than its factorization.

1304505900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 1304505900 is about 36117.9442936610. The cubic root of 1304505900 is about 1092.6523795714.

Adding to 1304505900 its reverse (95054031), we get a palindrome (1399559931).

The spelling of 1304505900 in words is "one billion, three hundred four million, five hundred five thousand, nine hundred".