1245304444 has 12 divisors (see below), whose sum is σ = 2205539784. Its totient is φ = 615150224.

The previous prime is 1245304397. The next prime is 1245304477. The reversal of 1245304444 is 4444035421.

It is a super-2 number, since 2×1245304444² = 3101566316492298272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1875127 + ... + 1875790.

It is an arithmetic number, because the mean of its divisors is an integer number (183794982).

Almost surely, 2^1245304444 is an apocalyptic number.

It is an amenable number.

1245304444 is a deficient number, since it is larger than the sum of its proper divisors (960235340).

1245304444 is a wasteful number, since it uses less digits than its factorization.

1245304444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3751004 (or 3751002 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

The square root of 1245304444 is about 35288.8713902839. The cubic root of 1245304444 is about 1075.8668167086.

Adding to 1245304444 its reverse (4444035421), we get a palindrome (5689339865).

The spelling of 1245304444 in words is "one billion, two hundred forty-five million, three hundred four thousand, four hundred forty-four".