1441778172 has 12 divisors (see below), whose sum is σ = 3364149096. Its totient is φ = 480592720.

The previous prime is 1441778171. The next prime is 1441778189. The reversal of 1441778172 is 2718771441.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×1441778172³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1441778171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60074079 + ... + 60074102.

It is an arithmetic number, because the mean of its divisors is an integer number (280345758).

Almost surely, 2^1441778172 is an apocalyptic number.

1441778172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1441778172 is an abundant number, since it is smaller than the sum of its proper divisors (1922370924).

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

1441778172 is a wasteful number, since it uses less digits than its factorization.

1441778172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120148188 (or 120148186 counting only the distinct ones).

The product of its digits is 87808, while the sum is 42.

The square root of 1441778172 is about 37970.7541668585. The cubic root of 1441778172 is about 1129.7078556645.

The spelling of 1441778172 in words is "one billion, four hundred forty-one million, seven hundred seventy-eight thousand, one hundred seventy-two".