1339660 has 36 divisors (see below), whose sum is σ = 3274992. Its totient is φ = 458976.

The previous prime is 1339643. The next prime is 1339661. The reversal of 1339660 is 669331.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (1339661) 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, 297 + ... + 1663.

It is an arithmetic number, because the mean of its divisors is an integer number (90972).

2^1339660 is an apocalyptic number.

1339660 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 1339660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1637496).

1339660 is an abundant number, since it is smaller than the sum of its proper divisors (1935332).

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

1339660 is a wasteful number, since it uses less digits than its factorization.

1339660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390 (or 1381 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 1339660 is about 1157.4368233299. The cubic root of 1339660 is about 110.2380519512.

It can be divided in two parts, 13396 and 60, that added together give a square (13456 = 116²).

The spelling of 1339660 in words is "one million, three hundred thirty-nine thousand, six hundred sixty".