1587500442 has 48 divisors (see below), whose sum is σ = 3762102240. Its totient is φ = 479800800.

The previous prime is 1587500423. The next prime is 1587500461. The reversal of 1587500442 is 2440057851.

It is an interprime number because it is at equal distance from previous prime (1587500423) and next prime (1587500461).

It is a junction number, because it is equal to n+sod(n) for n = 1587500397 and 1587500406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66717 + ... + 87327.

It is an arithmetic number, because the mean of its divisors is an integer number (78377130).

Almost surely, 2^1587500442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1587500442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1881051120).

1587500442 is an abundant number, since it is smaller than the sum of its proper divisors (2174601798).

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

1587500442 is a wasteful number, since it uses less digits than its factorization.

1587500442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21019 (or 21016 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 1587500442 is about 39843.4491729820. The cubic root of 1587500442 is about 1166.5533852277.

The spelling of 1587500442 in words is "one billion, five hundred eighty-seven million, five hundred thousand, four hundred forty-two".