1243960672 has 12 divisors (see below), whose sum is σ = 2449047636. Its totient is φ = 621980320.

The previous prime is 1243960657. The next prime is 1243960699. The reversal of 1243960672 is 2760693421.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19436854 + ... + 19436917.

It is an arithmetic number, because the mean of its divisors is an integer number (204087303).

Almost surely, 2^1243960672 is an apocalyptic number.

It is an amenable number.

1243960672 is a deficient number, since it is larger than the sum of its proper divisors (1205086964).

1243960672 is an equidigital number, since it uses as much as digits as its factorization.

1243960672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38873781 (or 38873773 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 1243960672 is about 35269.8266511192. The cubic root of 1243960672 is about 1075.4796985131.

The spelling of 1243960672 in words is "one billion, two hundred forty-three million, nine hundred sixty thousand, six hundred seventy-two".