2069681240 has 128 divisors (see below), whose sum is σ = 5212408320. Its totient is φ = 733286400.

The previous prime is 2069681239. The next prime is 2069681287. The reversal of 2069681240 is 421869602.

It is a junction number, because it is equal to n+sod(n) for n = 2069681194 and 2069681203.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3029939 + ... + 3030621.

It is an arithmetic number, because the mean of its divisors is an integer number (40721940).

Almost surely, 2^2069681240 is an apocalyptic number.

2069681240 is a gapful number since it is divisible by the number (20) 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 2069681240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2606204160).

2069681240 is an abundant number, since it is smaller than the sum of its proper divisors (3142727080).

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

2069681240 is a wasteful number, since it uses less digits than its factorization.

2069681240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873 (or 869 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 2069681240 is about 45493.7494607776. The cubic root of 2069681240 is about 1274.3864770906.

The spelling of 2069681240 in words is "two billion, sixty-nine million, six hundred eighty-one thousand, two hundred forty".