1385560 has 64 divisors (see below), whose sum is σ = 3525120. Its totient is φ = 485760.

The previous prime is 1385521. The next prime is 1385561. The reversal of 1385560 is 655831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20647 + ... + 20713.

It is an arithmetic number, because the mean of its divisors is an integer number (55080).

2^1385560 is an apocalyptic number.

1385560 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 1385560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1762560).

1385560 is an abundant number, since it is smaller than the sum of its proper divisors (2139560).

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

1385560 is a wasteful number, since it uses less digits than its factorization.

1385560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1385560 is about 1177.0981267507. The cubic root of 1385560 is about 111.4829483198.

The spelling of 1385560 in words is "one million, three hundred eighty-five thousand, five hundred sixty".