1304091372 has 96 divisors (see below), whose sum is σ = 3341721600. Its totient is φ = 394232832.

The previous prime is 1304091361. The next prime is 1304091379. The reversal of 1304091372 is 2731904031.

It is not an unprimeable number, because it can be changed into a prime (1304091379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 838948 + ... + 840500.

It is an arithmetic number, because the mean of its divisors is an integer number (34809600).

Almost surely, 2^1304091372 is an apocalyptic number.

1304091372 is a gapful number since it is divisible by the number (12) 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 1304091372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1670860800).

1304091372 is an abundant number, since it is smaller than the sum of its proper divisors (2037630228).

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

1304091372 is a wasteful number, since it uses less digits than its factorization.

1304091372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1735 (or 1733 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 1304091372 is about 36112.2053051319. The cubic root of 1304091372 is about 1092.5366312793.

The spelling of 1304091372 in words is "one billion, three hundred four million, ninety-one thousand, three hundred seventy-two".