1322661460 has 48 divisors (see below), whose sum is σ = 2913120000. Its totient is φ = 503483904.

The previous prime is 1322661449. The next prime is 1322661499. The reversal of 1322661460 is 641662231.

1322661460 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 84316 + ... + 98764.

It is an arithmetic number, because the mean of its divisors is an integer number (60690000).

Almost surely, 2^1322661460 is an apocalyptic number.

1322661460 is a gapful number since it is divisible by the number (10) 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 1322661460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1456560000).

1322661460 is an abundant number, since it is smaller than the sum of its proper divisors (1590458540).

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

1322661460 is a wasteful number, since it uses less digits than its factorization.

1322661460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14680 (or 14678 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1322661460 is about 36368.4129431022. The cubic root of 1322661460 is about 1097.6980677282.

The spelling of 1322661460 in words is "one billion, three hundred twenty-two million, six hundred sixty-one thousand, four hundred sixty".