2909196 has 72 divisors (see below), whose sum is σ = 7919184. Its totient is φ = 933120.

The previous prime is 2909191. The next prime is 2909219. The reversal of 2909196 is 6919092.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2909196.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2909191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39816 + ... + 39888.

2^2909196 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 2909196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3959592).

2909196 is an abundant number, since it is smaller than the sum of its proper divisors (5009988).

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

2909196 is a wasteful number, since it uses less digits than its factorization.

2909196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 2909196 is about 1705.6365380702. The cubic root of 2909196 is about 142.7548900661.

The spelling of 2909196 in words is "two million, nine hundred nine thousand, one hundred ninety-six".