1339666944 has 320 divisors, whose sum is σ = 4563136512. Its totient is φ = 339148800.

The previous prime is 1339666907. The next prime is 1339666957. The reversal of 1339666944 is 4496669331.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5558664 + ... + 5558904.

Almost surely, 2^1339666944 is an apocalyptic number.

1339666944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1339666944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2281568256).

1339666944 is an abundant number, since it is smaller than the sum of its proper divisors (3223469568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1339666944 is a wasteful number, since it uses less digits than its factorization.

1339666944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 311 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 51.

The square root of 1339666944 is about 36601.4609544483. The cubic root of 1339666944 is about 1102.3824242035.

The spelling of 1339666944 in words is "one billion, three hundred thirty-nine million, six hundred sixty-six thousand, nine hundred forty-four".