1368642 has 32 divisors (see below), whose sum is σ = 3032640. Its totient is φ = 408320.

The previous prime is 1368617. The next prime is 1368643. The reversal of 1368642 is 2468631.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368643) 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, 5758 + ... + 5990.

It is an arithmetic number, because the mean of its divisors is an integer number (94770).

2^1368642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1368642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1516320).

1368642 is an abundant number, since it is smaller than the sum of its proper divisors (1663998).

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

1368642 is a wasteful number, since it uses less digits than its factorization.

1368642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338.

The product of its digits is 6912, while the sum is 30.

The square root of 1368642 is about 1169.8897383942. The cubic root of 1368642 is about 111.0273449390.

It can be divided in two parts, 136 and 8642, that added together give a palindrome (8778).

The spelling of 1368642 in words is "one million, three hundred sixty-eight thousand, six hundred forty-two".