1971326322 has 96 divisors (see below), whose sum is σ = 5097456000. Its totient is φ = 559312128.

The previous prime is 1971326299. The next prime is 1971326347. The reversal of 1971326322 is 2236231791.

1971326322 is a `hidden beast` number, since 1 + 9 + 7 + 1 + 326 + 322 = 666.

It is a super-2 number, since 2×1971326322² = 7772254935620095368, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 504954 + ... + 508842.

It is an arithmetic number, because the mean of its divisors is an integer number (53098500).

Almost surely, 2^1971326322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1971326322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2548728000).

1971326322 is an abundant number, since it is smaller than the sum of its proper divisors (3126129678).

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

1971326322 is a wasteful number, since it uses less digits than its factorization.

1971326322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4062 (or 4050 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 1971326322 is about 44399.6207416235. The cubic root of 1971326322 is about 1253.8709489229.

The spelling of 1971326322 in words is "one billion, nine hundred seventy-one million, three hundred twenty-six thousand, three hundred twenty-two".