1304340243 has 16 divisors (see below), whose sum is σ = 1796129280. Its totient is φ = 841319136.

The previous prime is 1304340239. The next prime is 1304340251. The reversal of 1304340243 is 3420434031.

It is not a de Polignac number, because 1304340243 - 2² = 1304340239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1304340203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12955 + ... + 52692.

It is an arithmetic number, because the mean of its divisors is an integer number (112258080).

Almost surely, 2^1304340243 is an apocalyptic number.

1304340243 is a deficient number, since it is larger than the sum of its proper divisors (491789037).

1304340243 is a wasteful number, since it uses less digits than its factorization.

1304340243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65866.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 1304340243 is about 36115.6509424931. The cubic root of 1304340243 is about 1092.6061262537.

Adding to 1304340243 its reverse (3420434031), we get a palindrome (4724774274).

The spelling of 1304340243 in words is "one billion, three hundred four million, three hundred forty thousand, two hundred forty-three".