4139235242 has 8 divisors (see below), whose sum is σ = 6574079556. Its totient is φ = 1947875392.

The previous prime is 4139235241. The next prime is 4139235263. The reversal of 4139235242 is 2425329314.

It can be written as a sum of positive squares in 2 ways, for example, as 4116377281 + 22857961 = 64159^2 + 4781^2 .

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

It is a super-2 number, since 2×4139235242² = 34266536777229597128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4139235241) 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, 60871073 + ... + 60871140.

Almost surely, 2^4139235242 is an apocalyptic number.

4139235242 is a deficient number, since it is larger than the sum of its proper divisors (2434844314).

4139235242 is a wasteful number, since it uses less digits than its factorization.

4139235242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121742232.

The product of its digits is 51840, while the sum is 35.

The square root of 4139235242 is about 64336.8886565087. Note that the first 3 decimals coincide. The cubic root of 4139235242 is about 1605.6098964774.

The spelling of 4139235242 in words is "four billion, one hundred thirty-nine million, two hundred thirty-five thousand, two hundred forty-two".