1304490225 has 24 divisors (see below), whose sum is σ = 2159138592. Its totient is φ = 694960000.

The previous prime is 1304490211. The next prime is 1304490233. The reversal of 1304490225 is 5220944031.

It is not a de Polignac number, because 1304490225 - 2¹⁰ = 1304489201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1304490192 and 1304490201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62350 + ... + 80600.

It is an arithmetic number, because the mean of its divisors is an integer number (89964108).

Almost surely, 2^1304490225 is an apocalyptic number.

1304490225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1304490225 is a deficient number, since it is larger than the sum of its proper divisors (854648367).

1304490225 is a wasteful number, since it uses less digits than its factorization.

1304490225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19217 (or 19212 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1304490225 is about 36117.7272956093. The cubic root of 1304490225 is about 1092.6480031009.

The spelling of 1304490225 in words is "one billion, three hundred four million, four hundred ninety thousand, two hundred twenty-five".