1966220732 has 24 divisors (see below), whose sum is σ = 3971382240. Its totient is φ = 834321600.

The previous prime is 1966220699. The next prime is 1966220741. The reversal of 1966220732 is 2370226691.

It is a congruent number.

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, 344807 + ... + 350462.

It is an arithmetic number, because the mean of its divisors is an integer number (165474260).

Almost surely, 2^1966220732 is an apocalyptic number.

It is an amenable number.

1966220732 is an abundant number, since it is smaller than the sum of its proper divisors (2005161508).

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

1966220732 is a wasteful number, since it uses less digits than its factorization.

1966220732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695381 (or 695379 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 1966220732 is about 44342.0875918128. The cubic root of 1966220732 is about 1252.7875352569.

The spelling of 1966220732 in words is "one billion, nine hundred sixty-six million, two hundred twenty thousand, seven hundred thirty-two".