2066438344 has 16 divisors (see below), whose sum is σ = 3879621900. Its totient is φ = 1031872512.

The previous prime is 2066438333. The next prime is 2066438369. The reversal of 2066438344 is 4438346602.

It can be written as a sum of positive squares in 2 ways, for example, as 1835094244 + 231344100 = 42838^2 + 15210^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2066438297 and 2066438306.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161797 + ... + 174100.

Almost surely, 2^2066438344 is an apocalyptic number.

It is an amenable number.

2066438344 is a deficient number, since it is larger than the sum of its proper divisors (1813183556).

2066438344 is a wasteful number, since it uses less digits than its factorization.

2066438344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336672 (or 336668 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 40.

The square root of 2066438344 is about 45458.0943727297. The cubic root of 2066438344 is about 1273.7205350666.

The spelling of 2066438344 in words is "two billion, sixty-six million, four hundred thirty-eight thousand, three hundred forty-four".