1304010409 has 4 divisors (see below), whose sum is σ = 1404318916. Its totient is φ = 1203701904.

The previous prime is 1304010397. The next prime is 1304010469. The reversal of 1304010409 is 9040104031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 662908009 + 641102400 = 25747^2 + 25320^2 .

It is a cyclic number.

It is not a de Polignac number, because 1304010409 - 2¹⁵ = 1303977641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1304010409.

It is not an unprimeable number, because it can be changed into a prime (1304010469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50154234 + ... + 50154259.

It is an arithmetic number, because the mean of its divisors is an integer number (351079729).

Almost surely, 2^1304010409 is an apocalyptic number.

It is an amenable number.

1304010409 is a deficient number, since it is larger than the sum of its proper divisors (100308507).

1304010409 is a wasteful number, since it uses less digits than its factorization.

1304010409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100308506.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1304010409 is about 36111.0842955456. The cubic root of 1304010409 is about 1092.5140211883.

The spelling of 1304010409 in words is "one billion, three hundred four million, ten thousand, four hundred nine".