1304400315 has 8 divisors (see below), whose sum is σ = 2087040528. Its totient is φ = 695680160.

The previous prime is 1304400301. The next prime is 1304400319. The reversal of 1304400315 is 5130044031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1304400315 - 2⁵ = 1304400283 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1304400291 and 1304400300.

It is not an unprimeable number, because it can be changed into a prime (1304400319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43479996 + ... + 43480025.

It is an arithmetic number, because the mean of its divisors is an integer number (260880066).

Almost surely, 2^1304400315 is an apocalyptic number.

1304400315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1304400315 is a deficient number, since it is larger than the sum of its proper divisors (782640213).

1304400315 is an equidigital number, since it uses as much as digits as its factorization.

1304400315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86960029.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1304400315 is about 36116.4825945163. The cubic root of 1304400315 is about 1092.6228994916.

Adding to 1304400315 its reverse (5130044031), we get a palindrome (6434444346).

The spelling of 1304400315 in words is "one billion, three hundred four million, four hundred thousand, three hundred fifteen".