2199420340 has 48 divisors (see below), whose sum is σ = 4978127952. Its totient is φ = 811431936.

The previous prime is 2199420317. The next prime is 2199420371. The reversal of 2199420340 is 430249912.

It can be written as a sum of positive squares in 8 ways, for example, as 140801956 + 2058618384 = 11866^2 + 45372^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2199420296 and 2199420305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412572 + ... + 417868.

It is an arithmetic number, because the mean of its divisors is an integer number (103710999).

Almost surely, 2^2199420340 is an apocalyptic number.

2199420340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2199420340 is an abundant number, since it is smaller than the sum of its proper divisors (2778707612).

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

2199420340 is a wasteful number, since it uses less digits than its factorization.

2199420340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6916 (or 6914 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 2199420340 is about 46897.9779947921. The cubic root of 2199420340 is about 1300.4772094179.

The spelling of 2199420340 in words is "two billion, one hundred ninety-nine million, four hundred twenty thousand, three hundred forty".