1916447632 has 80 divisors (see below), whose sum is σ = 4131949824. Its totient is φ = 853776000.

The previous prime is 1916447581. The next prime is 1916447633. The reversal of 1916447632 is 2367446191.

It is not an unprimeable number, because it can be changed into a prime (1916447633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3902907 + ... + 3903397.

Almost surely, 2^1916447632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1916447632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2065974912).

1916447632 is an abundant number, since it is smaller than the sum of its proper divisors (2215502192).

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

1916447632 is a wasteful number, since it uses less digits than its factorization.

1916447632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908 (or 902 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The square root of 1916447632 is about 43777.2501648973. The cubic root of 1916447632 is about 1242.1259990606.

The spelling of 1916447632 in words is "one billion, nine hundred sixteen million, four hundred forty-seven thousand, six hundred thirty-two".