1443404445 has 128 divisors (see below), whose sum is σ = 2941747200. Its totient is φ = 589171968.

The previous prime is 1443404437. The next prime is 1443404503. The reversal of 1443404445 is 5444043441.

It is not a de Polignac number, because 1443404445 - 2³ = 1443404437 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3808266 + ... + 3808644.

It is an arithmetic number, because the mean of its divisors is an integer number (22982400).

Almost surely, 2^1443404445 is an apocalyptic number.

1443404445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1443404445 is an abundant number, since it is smaller than the sum of its proper divisors (1498342755).

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

1443404445 is a wasteful number, since it uses less digits than its factorization.

1443404445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519.

The product of its (nonzero) digits is 61440, while the sum is 33.

The square root of 1443404445 is about 37992.1629418489. The cubic root of 1443404445 is about 1130.1324524303.

Adding to 1443404445 its reverse (5444043441), we get a palindrome (6887447886).

It can be divided in two parts, 144340 and 4445, that added together give a triangular number (148785 = T₅₄₅).

The spelling of 1443404445 in words is "one billion, four hundred forty-three million, four hundred four thousand, four hundred forty-five".