1322613672 has 64 divisors (see below), whose sum is σ = 3426192000. Its totient is φ = 424967424.

The previous prime is 1322613653. The next prime is 1322613697. The reversal of 1322613672 is 2763162231.

It is a super-2 number, since 2×1322613672² = 3498613850722647168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 571654 + ... + 573962.

It is an arithmetic number, because the mean of its divisors is an integer number (53534250).

Almost surely, 2^1322613672 is an apocalyptic number.

1322613672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1322613672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1713096000).

1322613672 is an abundant number, since it is smaller than the sum of its proper divisors (2103578328).

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

1322613672 is a wasteful number, since it uses less digits than its factorization.

1322613672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3170 (or 3166 counting only the distinct ones).

The product of its digits is 18144, while the sum is 33.

The square root of 1322613672 is about 36367.7559384684. The cubic root of 1322613672 is about 1097.6848475585.

The spelling of 1322613672 in words is "one billion, three hundred twenty-two million, six hundred thirteen thousand, six hundred seventy-two".