1587242864 has 40 divisors (see below), whose sum is σ = 3158964480. Its totient is φ = 772314048.

The previous prime is 1587242827. The next prime is 1587242897. The reversal of 1587242864 is 4682427851.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80057 + ... + 97895.

It is an arithmetic number, because the mean of its divisors is an integer number (78974112).

Almost surely, 2^1587242864 is an apocalyptic number.

It is an amenable number.

1587242864 is a deficient number, since it is larger than the sum of its proper divisors (1571721616).

1587242864 is a wasteful number, since it uses less digits than its factorization.

1587242864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17997 (or 17991 counting only the distinct ones).

The product of its digits is 860160, while the sum is 47.

The square root of 1587242864 is about 39840.2166660775. The cubic root of 1587242864 is about 1166.4902892367.

The spelling of 1587242864 in words is "one billion, five hundred eighty-seven million, two hundred forty-two thousand, eight hundred sixty-four".