2167439242 has 8 divisors (see below), whose sum is σ = 3442403556. Its totient is φ = 1019971392.

The previous prime is 2167439237. The next prime is 2167439249. The reversal of 2167439242 is 2429347612.

It can be written as a sum of positive squares in 2 ways, for example, as 2159367961 + 8071281 = 46469^2 + 2841^2 .

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 = 2167439195 and 2167439204.

It is not an unprimeable number, because it can be changed into a prime (2167439249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31874073 + ... + 31874140.

Almost surely, 2^2167439242 is an apocalyptic number.

2167439242 is a deficient number, since it is larger than the sum of its proper divisors (1274964314).

2167439242 is a wasteful number, since it uses less digits than its factorization.

2167439242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63748232.

The product of its digits is 145152, while the sum is 40.

The square root of 2167439242 is about 46555.7648632261. The cubic root of 2167439242 is about 1294.1431284865.

The spelling of 2167439242 in words is "two billion, one hundred sixty-seven million, four hundred thirty-nine thousand, two hundred forty-two".