1219568772 has 24 divisors (see below), whose sum is σ = 2870846496. Its totient is φ = 402924928.

The previous prime is 1219568731. The next prime is 1219568837. The reversal of 1219568772 is 2778659121.

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, 448338 + ... + 451049.

It is an arithmetic number, because the mean of its divisors is an integer number (119618604).

Almost surely, 2^1219568772 is an apocalyptic number.

1219568772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1219568772 is an abundant number, since it is smaller than the sum of its proper divisors (1651277724).

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

1219568772 is a wasteful number, since it uses less digits than its factorization.

1219568772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899507 (or 899505 counting only the distinct ones).

The product of its digits is 423360, while the sum is 48.

The square root of 1219568772 is about 34922.3248367001. The cubic root of 1219568772 is about 1068.4038191546.

The spelling of 1219568772 in words is "one billion, two hundred nineteen million, five hundred sixty-eight thousand, seven hundred seventy-two".