1587745460 has 96 divisors (see below), whose sum is σ = 3897815040. Its totient is φ = 532022400.

The previous prime is 1587745427. The next prime is 1587745477. The reversal of 1587745460 is 645477851.

It is a super-2 number, since 2×1587745460² = 5041871291501223200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1742405 + ... + 1743315.

It is an arithmetic number, because the mean of its divisors is an integer number (40602240).

Almost surely, 2^1587745460 is an apocalyptic number.

1587745460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1587745460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1948907520).

1587745460 is an abundant number, since it is smaller than the sum of its proper divisors (2310069580).

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

1587745460 is a wasteful number, since it uses less digits than its factorization.

1587745460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197 (or 1195 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 47.

The square root of 1587745460 is about 39846.5238132513. The cubic root of 1587745460 is about 1166.6133982028.

The spelling of 1587745460 in words is "one billion, five hundred eighty-seven million, seven hundred forty-five thousand, four hundred sixty".