1366642034 has 4 divisors (see below), whose sum is σ = 2049963054. Its totient is φ = 683321016.

The previous prime is 1366642031. The next prime is 1366642049. The reversal of 1366642034 is 4302466631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4302466631 = 17137 ⋅251063.

It can be written as a sum of positive squares in only one way, i.e., 789441409 + 577200625 = 28097^2 + 24025^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1366641985 and 1366642003.

It is not an unprimeable number, because it can be changed into a prime (1366642031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341660507 + ... + 341660510.

Almost surely, 2^1366642034 is an apocalyptic number.

1366642034 is a deficient number, since it is larger than the sum of its proper divisors (683321020).

1366642034 is an equidigital number, since it uses as much as digits as its factorization.

1366642034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683321019.

The product of its (nonzero) digits is 62208, while the sum is 35.

The square root of 1366642034 is about 36968.1218619502. The cubic root of 1366642034 is about 1109.7323798184.

The spelling of 1366642034 in words is "one billion, three hundred sixty-six million, six hundred forty-two thousand, thirty-four".