1587012340 has 24 divisors (see below), whose sum is σ = 3403636992. Its totient is φ = 621298080.

The previous prime is 1587012331. The next prime is 1587012347. The reversal of 1587012340 is 432107851.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1587012347) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 843216 + ... + 845095.

It is an arithmetic number, because the mean of its divisors is an integer number (141818208).

Almost surely, 2^1587012340 is an apocalyptic number.

1587012340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1587012340 is an abundant number, since it is smaller than the sum of its proper divisors (1816624652).

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

1587012340 is a wasteful number, since it uses less digits than its factorization.

1587012340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688367 (or 1688365 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 1587012340 is about 39837.3234542684. The cubic root of 1587012340 is about 1166.4338145718.

The spelling of 1587012340 in words is "one billion, five hundred eighty-seven million, twelve thousand, three hundred forty".