1671239042 has 8 divisors (see below), whose sum is σ = 2734754832. Its totient is φ = 759654100.

The previous prime is 1671239029. The next prime is 1671239071. The reversal of 1671239042 is 2409321761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1671238993 and 1671239011.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37982684 + ... + 37982727.

It is an arithmetic number, because the mean of its divisors is an integer number (341844354).

Almost surely, 2^1671239042 is an apocalyptic number.

1671239042 is a deficient number, since it is larger than the sum of its proper divisors (1063515790).

1671239042 is a wasteful number, since it uses less digits than its factorization.

1671239042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75965424.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 1671239042 is about 40880.7906234701. The cubic root of 1671239042 is about 1186.7143415843.

The spelling of 1671239042 in words is "one billion, six hundred seventy-one million, two hundred thirty-nine thousand, forty-two".