4066399346 has 4 divisors (see below), whose sum is σ = 6099599022. Its totient is φ = 2033199672.

The previous prime is 4066399331. The next prime is 4066399349. The reversal of 4066399346 is 6439936604.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 2427040225 + 1639359121 = 49265^2 + 40489^2 .

It is a super-2 number, since 2×4066399346² = 33071207282298455432, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4066399294 and 4066399303.

It is not an unprimeable number, because it can be changed into a prime (4066399349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1016599835 + ... + 1016599838.

Almost surely, 2^4066399346 is an apocalyptic number.

4066399346 is a deficient number, since it is larger than the sum of its proper divisors (2033199676).

4066399346 is a wasteful number, since it uses less digits than its factorization.

4066399346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033199675.

The product of its (nonzero) digits is 2519424, while the sum is 50.

The square root of 4066399346 is about 63768.3255699881. The cubic root of 4066399346 is about 1596.1364261849.

The spelling of 4066399346 in words is "four billion, sixty-six million, three hundred ninety-nine thousand, three hundred forty-six".