2106947196 has 144 divisors (see below), whose sum is σ = 5660534880. Its totient is φ = 659957760.

The previous prime is 2106947149. The next prime is 2106947197. The reversal of 2106947196 is 6917496012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106947197) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5648466 + ... + 5648838.

It is an arithmetic number, because the mean of its divisors is an integer number (39309270).

Almost surely, 2^2106947196 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 2106947196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2830267440).

2106947196 is an abundant number, since it is smaller than the sum of its proper divisors (3553587684).

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

2106947196 is a wasteful number, since it uses less digits than its factorization.

2106947196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556 (or 551 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 2106947196 is about 45901.4944854740. The cubic root of 2106947196 is about 1281.9897430958.

It can be divided in two parts, 21069 and 47196, that added together give a triangular number (68265 = T₃₆₉).

The spelling of 2106947196 in words is "two billion, one hundred six million, nine hundred forty-seven thousand, one hundred ninety-six".