2399746066 has 4 divisors (see below), whose sum is σ = 3599619102. Its totient is φ = 1199873032.

The previous prime is 2399746043. The next prime is 2399746067. The reversal of 2399746066 is 6606479932.

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., 2168858041 + 230888025 = 46571^2 + 15195^2 .

It is not an unprimeable number, because it can be changed into a prime (2399746067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 599936515 + ... + 599936518.

Almost surely, 2^2399746066 is an apocalyptic number.

2399746066 is a deficient number, since it is larger than the sum of its proper divisors (1199873036).

2399746066 is a wasteful number, since it uses less digits than its factorization.

2399746066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199873035.

The product of its (nonzero) digits is 2939328, while the sum is 52.

The square root of 2399746066 is about 48987.2030840708. The cubic root of 2399746066 is about 1338.8186785581.

The spelling of 2399746066 in words is "two billion, three hundred ninety-nine million, seven hundred forty-six thousand, sixty-six".