1348431842 has 4 divisors (see below), whose sum is σ = 2022647766. Its totient is φ = 674215920.

The previous prime is 1348431829. The next prime is 1348431853. The reversal of 1348431842 is 2481348431.

It is a Cunningham number, because it is equal to 36721²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2481348431 = 29 ⋅85563739.

It can be written as a sum of positive squares in only one way, i.e., 1348431841 + 1 = 36721^2 + 1^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1348431796 and 1348431805.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337107959 + ... + 337107962.

Almost surely, 2^1348431842 is an apocalyptic number.

1348431842 is a deficient number, since it is larger than the sum of its proper divisors (674215924).

1348431842 is an equidigital number, since it uses as much as digits as its factorization.

1348431842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674215923.

The product of its digits is 73728, while the sum is 38.

The square root of 1348431842 is about 36721.0000136162. Note that the first 4 decimals coincide. The cubic root of 1348431842 is about 1104.7813472352.

The spelling of 1348431842 in words is "one billion, three hundred forty-eight million, four hundred thirty-one thousand, eight hundred forty-two".