1019804964 has 12 divisors (see below), whose sum is σ = 2379544944. Its totient is φ = 339934984.

The previous prime is 1019804939. The next prime is 1019804977. The reversal of 1019804964 is 4694089101.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42491862 + ... + 42491885.

It is an arithmetic number, because the mean of its divisors is an integer number (198295412).

Almost surely, 2^1019804964 is an apocalyptic number.

It is an amenable number.

1019804964 is an abundant number, since it is smaller than the sum of its proper divisors (1359739980).

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

1019804964 is a wasteful number, since it uses less digits than its factorization.

1019804964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84983754 (or 84983752 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 1019804964 is about 31934.3852923459. The cubic root of 1019804964 is about 1006.5585461021.

The spelling of 1019804964 in words is "one billion, nineteen million, eight hundred four thousand, nine hundred sixty-four".