2431340066 has 4 divisors (see below), whose sum is σ = 3647010102. Its totient is φ = 1215670032.

The previous prime is 2431340063. The next prime is 2431340089. The reversal of 2431340066 is 6600431342.

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., 1821497041 + 609843025 = 42679^2 + 24695^2 .

It is a super-2 number, since 2×2431340066² = 11822829033073768712, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2431340063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607835015 + ... + 607835018.

Almost surely, 2^2431340066 is an apocalyptic number.

2431340066 is a deficient number, since it is larger than the sum of its proper divisors (1215670036).

2431340066 is a wasteful number, since it uses less digits than its factorization.

2431340066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215670035.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 2431340066 is about 49308.6206053262. The cubic root of 2431340066 is about 1344.6685134547.

The spelling of 2431340066 in words is "two billion, four hundred thirty-one million, three hundred forty thousand, sixty-six".