1333986444 has 36 divisors (see below), whose sum is σ = 3853739344. Its totient is φ = 381138912.

The previous prime is 1333986443. The next prime is 1333986449. The reversal of 1333986444 is 4446893331.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1333986444.

It is not an unprimeable number, because it can be changed into a prime (1333986443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2646547 + ... + 2647050.

Almost surely, 2^1333986444 is an apocalyptic number.

1333986444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1333986444 is an abundant number, since it is smaller than the sum of its proper divisors (2519752900).

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

1333986444 is a wasteful number, since it uses less digits than its factorization.

1333986444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5293614 (or 5293609 counting only the distinct ones).

The product of its digits is 746496, while the sum is 45.

The square root of 1333986444 is about 36523.7791582416. The cubic root of 1333986444 is about 1100.8220972891.

The spelling of 1333986444 in words is "one billion, three hundred thirty-three million, nine hundred eighty-six thousand, four hundred forty-four".