1304420144 has 40 divisors (see below), whose sum is σ = 2587453440. Its totient is φ = 636840000.

The previous prime is 1304420123. The next prime is 1304420177. The reversal of 1304420144 is 4410244031.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137969 + ... + 147119.

It is an arithmetic number, because the mean of its divisors is an integer number (64686336).

Almost surely, 2^1304420144 is an apocalyptic number.

It is an amenable number.

1304420144 is a deficient number, since it is larger than the sum of its proper divisors (1283033296).

1304420144 is a wasteful number, since it uses less digits than its factorization.

1304420144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9369 (or 9363 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1304420144 is about 36116.7571080240. The cubic root of 1304420144 is about 1092.6284360101.

Adding to 1304420144 its reverse (4410244031), we get a palindrome (5714664175).

The spelling of 1304420144 in words is "one billion, three hundred four million, four hundred twenty thousand, one hundred forty-four".