2021969908 has 48 divisors (see below), whose sum is σ = 4222556800. Its totient is φ = 846381312.

The previous prime is 2021969903. The next prime is 2021969923. The reversal of 2021969908 is 8099691202.

2021969908 is nontrivially palindromic in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021969903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41860 + ... + 76132.

Almost surely, 2^2021969908 is an apocalyptic number.

2021969908 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021969908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2111278400).

2021969908 is an abundant number, since it is smaller than the sum of its proper divisors (2200586892).

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

2021969908 is a wasteful number, since it uses less digits than its factorization.

2021969908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34341 (or 34325 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 2021969908 is about 44966.3197070874. The cubic root of 2021969908 is about 1264.5176511982.

The spelling of 2021969908 in words is "two billion, twenty-one million, nine hundred sixty-nine thousand, nine hundred eight".