1386090 has 24 divisors (see below), whose sum is σ = 3604068. Its totient is φ = 369600.

The previous prime is 1386089. The next prime is 1386097. The reversal of 1386090 is 906831.

It can be written as a sum of positive squares in 2 ways, for example, as 1279161 + 106929 = 1131^2 + 327^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386097) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7611 + ... + 7790.

2^1386090 is an apocalyptic number.

1386090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1386090 is an abundant number, since it is smaller than the sum of its proper divisors (2217978).

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

1386090 is a wasteful number, since it uses less digits than its factorization.

1386090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15414 (or 15411 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1386090 is about 1177.3232351398. The cubic root of 1386090 is about 111.4971612085.

The spelling of 1386090 in words is "one million, three hundred eighty-six thousand, ninety".