8042742346 has 4 divisors (see below), whose sum is σ = 12064113522. Its totient is φ = 4021371172.

The previous prime is 8042742277. The next prime is 8042742371. The reversal of 8042742346 is 6432472408.

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., 6857661721 + 1185080625 = 82811^2 + 34425^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8042742299 and 8042742308.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010685585 + ... + 2010685588.

Almost surely, 2^8042742346 is an apocalyptic number.

8042742346 is a deficient number, since it is larger than the sum of its proper divisors (4021371176).

8042742346 is a wasteful number, since it uses less digits than its factorization.

8042742346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4021371175.

The product of its (nonzero) digits is 258048, while the sum is 40.

The square root of 8042742346 is about 89681.3377799417. The cubic root of 8042742346 is about 2003.5555374975. Note that the first 4 decimals are identical.

The spelling of 8042742346 in words is "eight billion, forty-two million, seven hundred forty-two thousand, three hundred forty-six".