1444797684 has 36 divisors (see below), whose sum is σ = 3984140160. Its totient is φ = 437817360.

The previous prime is 1444797667. The next prime is 1444797689. The reversal of 1444797684 is 4867974441.

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 1444797684.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444797689) 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, 1823844 + ... + 1824635.

It is an arithmetic number, because the mean of its divisors is an integer number (110670560).

Almost surely, 2^1444797684 is an apocalyptic number.

It is an amenable number.

1444797684 is an abundant number, since it is smaller than the sum of its proper divisors (2539342476).

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

1444797684 is a wasteful number, since it uses less digits than its factorization.

1444797684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3648500 (or 3648495 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 54.

The square root of 1444797684 is about 38010.4943929963. The cubic root of 1444797684 is about 1130.4959537524.

The spelling of 1444797684 in words is "one billion, four hundred forty-four million, seven hundred ninety-seven thousand, six hundred eighty-four".