1001916 has 24 divisors (see below), whose sum is σ = 2597840. Its totient is φ = 333936.

The previous prime is 1001911. The next prime is 1001933. The reversal of 1001916 is 6191001.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4531 + ... + 4746.

2^1001916 is an apocalyptic number.

It is an amenable number.

1001916 is an abundant number, since it is smaller than the sum of its proper divisors (1595924).

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

1001916 is a wasteful number, since it uses less digits than its factorization.

1001916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9290 (or 9282 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The square root of 1001916 is about 1000.9575415571. The cubic root of 1001916 is about 100.0638259205.

Adding to 1001916 its reverse (6191001), we get a palindrome (7192917).

It can be divided in two parts, 100 and 1916, that added together give a triangular number (2016 = T₆₃).

The spelling of 1001916 in words is "one million, one thousand, nine hundred sixteen".