1441620720 has 80 divisors (see below), whose sum is σ = 4965589920. Its totient is φ = 384431616.

The previous prime is 1441620679. The next prime is 1441620779. The reversal of 1441620720 is 270261441.

1441620720 is a `hidden beast` number, since 14 + 4 + 1 + 620 + 7 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 331549 + ... + 335868.

It is an arithmetic number, because the mean of its divisors is an integer number (62069874).

Almost surely, 2^1441620720 is an apocalyptic number.

1441620720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1441620720 is an abundant number, since it is smaller than the sum of its proper divisors (3523969200).

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

1441620720 is a wasteful number, since it uses less digits than its factorization.

1441620720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667439 (or 667427 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 1441620720 is about 37968.6807777147. The cubic root of 1441620720 is about 1129.6667302357. Note that the first 3 decimals are identical.

The spelling of 1441620720 in words is "one billion, four hundred forty-one million, six hundred twenty thousand, seven hundred twenty".