1087380 has 72 divisors (see below), whose sum is σ = 3773952. Its totient is φ = 248256.

The previous prime is 1087379. The next prime is 1087381. The reversal of 1087380 is 837801.

It is an interprime number because it is at equal distance from previous prime (1087379) and next prime (1087381).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 829 + ... + 1691.

It is an arithmetic number, because the mean of its divisors is an integer number (52416).

2^1087380 is an apocalyptic number.

1087380 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 1087380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1886976).

1087380 is an abundant number, since it is smaller than the sum of its proper divisors (2686572).

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

1087380 is a wasteful number, since it uses less digits than its factorization.

1087380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885 (or 880 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 1087380 is about 1042.7751435473. The cubic root of 1087380 is about 102.8317232158.

The spelling of 1087380 in words is "one million, eighty-seven thousand, three hundred eighty".