1456842242 has 4 divisors (see below), whose sum is σ = 2185263366. Its totient is φ = 728421120.

The previous prime is 1456842229. The next prime is 1456842253. The reversal of 1456842242 is 2422486541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 819734161 + 637108081 = 28631^2 + 25241^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1456842196 and 1456842205.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364210559 + ... + 364210562.

Almost surely, 2^1456842242 is an apocalyptic number.

1456842242 is a deficient number, since it is larger than the sum of its proper divisors (728421124).

1456842242 is an equidigital number, since it uses as much as digits as its factorization.

1456842242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728421123.

The product of its digits is 122880, while the sum is 38.

The square root of 1456842242 is about 38168.6028300749. The cubic root of 1456842242 is about 1133.6287247520.

The spelling of 1456842242 in words is "one billion, four hundred fifty-six million, eight hundred forty-two thousand, two hundred forty-two".