1408443444 has 24 divisors (see below), whose sum is σ = 3651520320. Its totient is φ = 469481112.

The previous prime is 1408443437. The next prime is 1408443451. The reversal of 1408443444 is 4443448041.

1408443444 is a `hidden beast` number, since 140 + 84 + 434 + 4 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (1408443437) and next prime (1408443451).

It is a super-2 number, since 2×1408443444² = 3967425869893162272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1408443399 and 1408443408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6520464 + ... + 6520679.

It is an arithmetic number, because the mean of its divisors is an integer number (152146680).

Almost surely, 2^1408443444 is an apocalyptic number.

It is an amenable number.

1408443444 is an abundant number, since it is smaller than the sum of its proper divisors (2243076876).

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

1408443444 is a wasteful number, since it uses less digits than its factorization.

1408443444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13041156 (or 13041148 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 36.

The square root of 1408443444 is about 37529.2345245676. The cubic root of 1408443444 is about 1120.9333853973.

The spelling of 1408443444 in words is "one billion, four hundred eight million, four hundred forty-three thousand, four hundred forty-four".