1587340 has 12 divisors (see below), whose sum is σ = 3333456. Its totient is φ = 634928.

The previous prime is 1587323. The next prime is 1587343. The reversal of 1587340 is 437851.

It is a junction number, because it is equal to n+sod(n) for n = 1587299 and 1587308.

It is not an unprimeable number, because it can be changed into a prime (1587343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39664 + ... + 39703.

It is an arithmetic number, because the mean of its divisors is an integer number (277788).

2^1587340 is an apocalyptic number.

1587340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1587340 is an abundant number, since it is smaller than the sum of its proper divisors (1746116).

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

1587340 is a wasteful number, since it uses less digits than its factorization.

1587340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79376 (or 79374 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 1587340 is about 1259.8968211723. The cubic root of 1587340 is about 116.6514084354.

The spelling of 1587340 in words is "one million, five hundred eighty-seven thousand, three hundred forty".