2138426084 has 12 divisors (see below), whose sum is σ = 3793509804. Its totient is φ = 1054566144.

The previous prime is 2138426083. The next prime is 2138426093. The reversal of 2138426084 is 4806248312.

It can be written as a sum of positive squares in 2 ways, for example, as 421152484 + 1717273600 = 20522^2 + 41440^2 .

It is a super-2 number, since 2×2138426084² = 9145732233463150112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2138426083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3661397 + ... + 3661980.

It is an arithmetic number, because the mean of its divisors is an integer number (316125817).

Almost surely, 2^2138426084 is an apocalyptic number.

It is an amenable number.

2138426084 is a deficient number, since it is larger than the sum of its proper divisors (1655083720).

2138426084 is a wasteful number, since it uses less digits than its factorization.

2138426084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7323454 (or 7323452 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 38.

The square root of 2138426084 is about 46243.1193152019. The cubic root of 2138426084 is about 1288.3427397295.

The spelling of 2138426084 in words is "two billion, one hundred thirty-eight million, four hundred twenty-six thousand, eighty-four".