2126228340 has 48 divisors (see below), whose sum is σ = 6006143808. Its totient is φ = 561974784.

The previous prime is 2126228339. The next prime is 2126228359. The reversal of 2126228340 is 438226212.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2126228298 and 2126228307.

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, 150022 + ... + 163581.

It is an arithmetic number, because the mean of its divisors is an integer number (125127996).

Almost surely, 2^2126228340 is an apocalyptic number.

2126228340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2126228340 is an abundant number, since it is smaller than the sum of its proper divisors (3879915468).

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

2126228340 is a wasteful number, since it uses less digits than its factorization.

2126228340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313728 (or 313726 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 2126228340 is about 46111.0435796025. The cubic root of 2126228340 is about 1285.8884658907. Note that the first 3 decimals are identical.

The spelling of 2126228340 in words is "two billion, one hundred twenty-six million, two hundred twenty-eight thousand, three hundred forty".