2126214638 has 4 divisors (see below), whose sum is σ = 3189321960. Its totient is φ = 1063107318.

The previous prime is 2126214631. The next prime is 2126214677. The reversal of 2126214638 is 8364126212.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2126214598 and 2126214607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126214631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 531553658 + ... + 531553661.

It is an arithmetic number, because the mean of its divisors is an integer number (797330490).

Almost surely, 2^2126214638 is an apocalyptic number.

2126214638 is a deficient number, since it is larger than the sum of its proper divisors (1063107322).

2126214638 is a wasteful number, since it uses less digits than its factorization.

2126214638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063107321.

The product of its digits is 27648, while the sum is 35.

The square root of 2126214638 is about 46110.8950032419. The cubic root of 2126214638 is about 1285.8857036785.

The spelling of 2126214638 in words is "two billion, one hundred twenty-six million, two hundred fourteen thousand, six hundred thirty-eight".