1356872 has 32 divisors (see below), whose sum is σ = 2941920. Its totient is φ = 579840.

The previous prime is 1356871. The next prime is 1356877. The reversal of 1356872 is 2786531.

It is a happy number.

It is a super-2 number, since 2×1356872² = 3682203248768, which contains 22 as substring.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1356871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1043 + ... + 1949.

It is an arithmetic number, because the mean of its divisors is an integer number (91935).

2^1356872 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 1356872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1470960).

1356872 is an abundant number, since it is smaller than the sum of its proper divisors (1585048).

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

1356872 is a wasteful number, since it uses less digits than its factorization.

1356872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941 (or 937 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 1356872 is about 1164.8484880018. The cubic root of 1356872 is about 110.7081585034.

It can be divided in two parts, 135 and 6872, that added together give a palindrome (7007).

The spelling of 1356872 in words is "one million, three hundred fifty-six thousand, eight hundred seventy-two".