1356894 has 72 divisors (see below), whose sum is σ = 3734640. Its totient is φ = 348480.

The previous prime is 1356877. The next prime is 1356899. The reversal of 1356894 is 4986531.

1356894 is a `hidden beast` number, since 1 + 3 + 568 + 94 = 666.

It is a super-2 number, since 2×1356894² = 3682322654472, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1356899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15202 + ... + 15290.

It is an arithmetic number, because the mean of its divisors is an integer number (51870).

2^1356894 is an apocalyptic number.

1356894 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1356894 is the 623-rd nonagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1356894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1867320).

1356894 is an abundant number, since it is smaller than the sum of its proper divisors (2377746).

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

1356894 is a wasteful number, since it uses less digits than its factorization.

1356894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 112 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 1356894 is about 1164.8579312517. The cubic root of 1356894 is about 110.7087568321.

The spelling of 1356894 in words is "one million, three hundred fifty-six thousand, eight hundred ninety-four".