4239706438 has 16 divisors (see below), whose sum is σ = 6999101136. Its totient is φ = 1910083840.

The previous prime is 4239706411. The next prime is 4239706441. The reversal of 4239706438 is 8346079324.

It is a super-2 number, since 2×4239706438² = 35950221360837295688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 850231 + ... + 855202.

It is an arithmetic number, because the mean of its divisors is an integer number (437443821).

Almost surely, 2^4239706438 is an apocalyptic number.

4239706438 is a deficient number, since it is larger than the sum of its proper divisors (2759394698).

4239706438 is a wasteful number, since it uses less digits than its factorization.

4239706438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705559.

The product of its (nonzero) digits is 870912, while the sum is 46.

The square root of 4239706438 is about 65113.0281740912. The cubic root of 4239706438 is about 1618.4971122607.

The spelling of 4239706438 in words is "four billion, two hundred thirty-nine million, seven hundred six thousand, four hundred thirty-eight".