1390580 has 24 divisors (see below), whose sum is σ = 3048192. Its totient is φ = 531872.

The previous prime is 1390573. The next prime is 1390601. The reversal of 1390580 is 850931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1052 + ... + 1971.

It is an arithmetic number, because the mean of its divisors is an integer number (127008).

2^1390580 is an apocalyptic number.

1390580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1390580 is an abundant number, since it is smaller than the sum of its proper divisors (1657612).

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

1390580 is a wasteful number, since it uses less digits than its factorization.

1390580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3055 (or 3053 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1390580 is about 1179.2285613909. The cubic root of 1390580 is about 111.6174234004.

The spelling of 1390580 in words is "one million, three hundred ninety thousand, five hundred eighty".