1019916 has 36 divisors (see below), whose sum is σ = 2644824. Its totient is φ = 331200.

The previous prime is 1019903. The next prime is 1019927. The reversal of 1019916 is 6199101.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1019916.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1131 + ... + 1821.

2^1019916 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 1019916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1322412).

1019916 is an abundant number, since it is smaller than the sum of its proper divisors (1624908).

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

1019916 is a wasteful number, since it uses less digits than its factorization.

1019916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742 (or 737 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The square root of 1019916 is about 1009.9089067832. The cubic root of 1019916 is about 100.6595076021.

The spelling of 1019916 in words is "one million, nineteen thousand, nine hundred sixteen".