1245242944 has 63 divisors (see below), whose sum is σ = 2722879873. Its totient is φ = 564608000.

The previous prime is 1245242909. The next prime is 1245242953. The reversal of 1245242944 is 4492425421.

The square root of 1245242944 is 35288.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1232852544 + 12390400 = 35112^2 + 3520^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3105144 + ... + 3105544.

Almost surely, 2^1245242944 is an apocalyptic number.

1245242944 is the 35288-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1245242944

1245242944 is an abundant number, since it is smaller than the sum of its proper divisors (1477636929).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1245242944 is an frugal number, since it uses more digits than its factorization.

1245242944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836 (or 414 counting only the distinct ones).

The product of its digits is 92160, while the sum is 37.

The cubic root of 1245242944 is about 1075.8491056718.

The spelling of 1245242944 in words is "one billion, two hundred forty-five million, two hundred forty-two thousand, nine hundred forty-four".