1444381396 has 12 divisors (see below), whose sum is σ = 2534830452. Its totient is φ = 720144128.

The previous prime is 1444381369. The next prime is 1444381403. The reversal of 1444381396 is 6931834441.

It can be written as a sum of positive squares in 2 ways, for example, as 876988996 + 567392400 = 29614^2 + 23820^2 .

It is a super-2 number, since 2×1444381396² = 4172475234221817632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510055 + ... + 512878.

It is an arithmetic number, because the mean of its divisors is an integer number (211235871).

Almost surely, 2^1444381396 is an apocalyptic number.

It is an amenable number.

1444381396 is a deficient number, since it is larger than the sum of its proper divisors (1090449056).

1444381396 is a wasteful number, since it uses less digits than its factorization.

1444381396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023290 (or 1023288 counting only the distinct ones).

The product of its digits is 248832, while the sum is 43.

The square root of 1444381396 is about 38005.0180370961. The cubic root of 1444381396 is about 1130.3873671290.

The spelling of 1444381396 in words is "one billion, four hundred forty-four million, three hundred eighty-one thousand, three hundred ninety-six".