1455989872 has 20 divisors (see below), whose sum is σ = 2848371760. Its totient is φ = 720926208.

The previous prime is 1455989869. The next prime is 1455989917. The reversal of 1455989872 is 2789895541.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440097 + ... + 443392.

It is an arithmetic number, because the mean of its divisors is an integer number (142418588).

Almost surely, 2^1455989872 is an apocalyptic number.

It is an amenable number.

1455989872 is a deficient number, since it is larger than the sum of its proper divisors (1392381888).

1455989872 is a wasteful number, since it uses less digits than its factorization.

1455989872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883600 (or 883594 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 58.

The square root of 1455989872 is about 38157.4353435867. The cubic root of 1455989872 is about 1133.4075935962.

The spelling of 1455989872 in words is "one billion, four hundred fifty-five million, nine hundred eighty-nine thousand, eight hundred seventy-two".