1338440966 has 8 divisors (see below), whose sum is σ = 2017750800. Its totient is φ = 665857368.

The previous prime is 1338440963. The next prime is 1338440981. The reversal of 1338440966 is 6690448331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338440963) 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, 1681061 + ... + 1681856.

It is an arithmetic number, because the mean of its divisors is an integer number (252218850).

Almost surely, 2^1338440966 is an apocalyptic number.

1338440966 is a deficient number, since it is larger than the sum of its proper divisors (679309834).

1338440966 is a wasteful number, since it uses less digits than its factorization.

1338440966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3363118.

The product of its (nonzero) digits is 373248, while the sum is 44.

The square root of 1338440966 is about 36584.7094562742. The cubic root of 1338440966 is about 1102.0460448063.

The spelling of 1338440966 in words is "one billion, three hundred thirty-eight million, four hundred forty thousand, nine hundred sixty-six".