1369574042 has 4 divisors (see below), whose sum is σ = 2054361066. Its totient is φ = 684787020.

The previous prime is 1369574023. The next prime is 1369574053. The reversal of 1369574042 is 2404759631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2404759631 = 139 ⋅17300429.

It can be written as a sum of positive squares in only one way, i.e., 1366854841 + 2719201 = 36971^2 + 1649^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342393509 + ... + 342393512.

Almost surely, 2^1369574042 is an apocalyptic number.

1369574042 is a deficient number, since it is larger than the sum of its proper divisors (684787024).

1369574042 is an equidigital number, since it uses as much as digits as its factorization.

1369574042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684787023.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 1369574042 is about 37007.7565113045. The cubic root of 1369574042 is about 1110.5254234079.

The spelling of 1369574042 in words is "one billion, three hundred sixty-nine million, five hundred seventy-four thousand, forty-two".