1288411772 has 6 divisors (see below), whose sum is σ = 2254720608. Its totient is φ = 644205884.

The previous prime is 1288411771. The next prime is 1288411783. The reversal of 1288411772 is 2771148821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288411771) by changing a digit.

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 as a sum of consecutive naturals, namely, 161051468 + ... + 161051475.

It is an arithmetic number, because the mean of its divisors is an integer number (375786768).

Almost surely, 2^1288411772 is an apocalyptic number.

It is an amenable number.

1288411772 is a deficient number, since it is larger than the sum of its proper divisors (966308836).

1288411772 is a wasteful number, since it uses less digits than its factorization.

1288411772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322102947 (or 322102945 counting only the distinct ones).

The product of its digits is 50176, while the sum is 41.

The square root of 1288411772 is about 35894.4532205186. The cubic root of 1288411772 is about 1088.1402994085.

The spelling of 1288411772 in words is "one billion, two hundred eighty-eight million, four hundred eleven thousand, seven hundred seventy-two".