1304390244 has 24 divisors (see below), whose sum is σ = 3061175040. Its totient is φ = 432282784.

The previous prime is 1304390239. The next prime is 1304390257. The reversal of 1304390244 is 4420934031.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312084 + ... + 316235.

It is an arithmetic number, because the mean of its divisors is an integer number (127548960).

Almost surely, 2^1304390244 is an apocalyptic number.

It is an amenable number.

1304390244 is an abundant number, since it is smaller than the sum of its proper divisors (1756784796).

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

1304390244 is a wasteful number, since it uses less digits than its factorization.

1304390244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628499 (or 628497 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 1304390244 is about 36116.3431703709. The cubic root of 1304390244 is about 1092.6200875139.

The spelling of 1304390244 in words is "one billion, three hundred four million, three hundred ninety thousand, two hundred forty-four".