1444153564 has 24 divisors (see below), whose sum is σ = 2891627648. Its totient is φ = 618211440.

The previous prime is 1444153559. The next prime is 1444153567. The reversal of 1444153564 is 4653514441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444153567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4482 + ... + 53929.

Almost surely, 2^1444153564 is an apocalyptic number.

1444153564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1444153564 is an abundant number, since it is smaller than the sum of its proper divisors (1447474084).

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

1444153564 is a wasteful number, since it uses less digits than its factorization.

1444153564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59305 (or 59303 counting only the distinct ones).

The product of its digits is 115200, while the sum is 37.

The square root of 1444153564 is about 38002.0205252300. The cubic root of 1444153564 is about 1130.3279294677.

The spelling of 1444153564 in words is "one billion, four hundred forty-four million, one hundred fifty-three thousand, five hundred sixty-four".