1487631872 has 40 divisors (see below), whose sum is σ = 2977543800. Its totient is φ = 742518784.

The previous prime is 1487631853. The next prime is 1487631877. The reversal of 1487631872 is 2781367841.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1487631877) by changing a digit.

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, 335204 + ... + 339612.

It is an arithmetic number, because the mean of its divisors is an integer number (74438595).

Almost surely, 2^1487631872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1487631872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1488771900).

1487631872 is an abundant number, since it is smaller than the sum of its proper divisors (1489911928).

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

1487631872 is an frugal number, since it uses more digits than its factorization.

1487631872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5086 (or 5070 counting only the distinct ones).

The product of its digits is 451584, while the sum is 47.

The square root of 1487631872 is about 38569.8311118937. The cubic root of 1487631872 is about 1141.5593393721.

The spelling of 1487631872 in words is "one billion, four hundred eighty-seven million, six hundred thirty-one thousand, eight hundred seventy-two".