1367642 has 4 divisors (see below), whose sum is σ = 2051466. Its totient is φ = 683820.

The previous prime is 1367617. The next prime is 1367647. The reversal of 1367642 is 2467631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2467631 = 31 ⋅79601.

It can be written as a sum of positive squares in only one way, i.e., 1164241 + 203401 = 1079^2 + 451^2 .

It is not an unprimeable number, because it can be changed into a prime (1367647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341909 + ... + 341912.

2^1367642 is an apocalyptic number.

1367642 is a deficient number, since it is larger than the sum of its proper divisors (683824).

1367642 is an equidigital number, since it uses as much as digits as its factorization.

1367642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683823.

The product of its digits is 6048, while the sum is 29.

The square root of 1367642 is about 1169.4622695923. The cubic root of 1367642 is about 111.0002975941. Note that the first 3 decimals are identical.

The spelling of 1367642 in words is "one million, three hundred sixty-seven thousand, six hundred forty-two".