1365642 has 12 divisors (see below), whose sum is σ = 2958930. Its totient is φ = 455208.

The previous prime is 1365583. The next prime is 1365659. The reversal of 1365642 is 2465631.

1365642 is a `hidden beast` number, since 1 + 3 + 656 + 4 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1083681 + 281961 = 1041^2 + 531^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37917 + ... + 37952.

2^1365642 is an apocalyptic number.

1365642 is an abundant number, since it is smaller than the sum of its proper divisors (1593288).

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

1365642 is a wasteful number, since it uses less digits than its factorization.

1365642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75877 (or 75874 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 1365642 is about 1168.6068628927. The cubic root of 1365642 is about 110.9461633253.

It can be divided in two parts, 136 and 5642, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 1365642 in words is "one million, three hundred sixty-five thousand, six hundred forty-two".