1304020245 has 32 divisors (see below), whose sum is σ = 2279975040. Its totient is φ = 631178240.

The previous prime is 1304020219. The next prime is 1304020247. The reversal of 1304020245 is 5420204031.

It is not a de Polignac number, because 1304020245 - 2⁶ = 1304020181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304020247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95401 + ... + 108209.

It is an arithmetic number, because the mean of its divisors is an integer number (71249220).

Almost surely, 2^1304020245 is an apocalyptic number.

1304020245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1304020245 is a deficient number, since it is larger than the sum of its proper divisors (975954795).

1304020245 is a wasteful number, since it uses less digits than its factorization.

1304020245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13445.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1304020245 is about 36111.2204861591. The cubic root of 1304020245 is about 1092.5167680837.

Adding to 1304020245 its reverse (5420204031), we get a palindrome (6724224276).

The spelling of 1304020245 in words is "one billion, three hundred four million, twenty thousand, two hundred forty-five".