1587630478 has 24 divisors (see below), whose sum is σ = 2790207000. Its totient is φ = 675512208.

The previous prime is 1587630467. The next prime is 1587630523. The reversal of 1587630478 is 8740367851.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44653 + ... + 71896.

It is an arithmetic number, because the mean of its divisors is an integer number (116258625).

Almost surely, 2^1587630478 is an apocalyptic number.

1587630478 is a deficient number, since it is larger than the sum of its proper divisors (1202576522).

1587630478 is a wasteful number, since it uses less digits than its factorization.

1587630478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116704 (or 116697 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 49.

The square root of 1587630478 is about 39845.0809762008. The cubic root of 1587630478 is about 1166.5852360942.

The spelling of 1587630478 in words is "one billion, five hundred eighty-seven million, six hundred thirty thousand, four hundred seventy-eight".