1358856 has 56 divisors (see below), whose sum is σ = 3836430. Its totient is φ = 451008.

The previous prime is 1358837. The next prime is 1358857. The reversal of 1358856 is 6588531.

It can be written as a sum of positive squares in only one way, i.e., 1285956 + 72900 = 1134^2 + 270^2 .

It is a super-4 number, since 4×1358856⁴ (a number of 26 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1358856.

It is not an unprimeable number, because it can be changed into a prime (1358857) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 5716 + ... + 5948.

2^1358856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1358856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1918215).

1358856 is an abundant number, since it is smaller than the sum of its proper divisors (2477574).

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

1358856 is an equidigital number, since it uses as much as digits as its factorization.

1358856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 238 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 1358856 is about 1165.6997898258. The cubic root of 1358856 is about 110.7620908859.

The spelling of 1358856 in words is "one million, three hundred fifty-eight thousand, eight hundred fifty-six".