4079842 has 16 divisors (see below), whose sum is σ = 6770232. Its totient is φ = 1831680.

The previous prime is 4079837. The next prime is 4079857. The reversal of 4079842 is 2489704.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4076361 + 3481 = 2019^2 + 59^2 .

It is a super-2 number, since 2×4079842² = 33290221489928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4079798 and 4079807.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1159 + ... + 3082.

Almost surely, 2^4079842 is an apocalyptic number.

4079842 is a deficient number, since it is larger than the sum of its proper divisors (2690390).

4079842 is a wasteful number, since it uses less digits than its factorization.

4079842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4293.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 4079842 is about 2019.8618764658. The cubic root of 4079842 is about 159.7893321158.

The spelling of 4079842 in words is "four million, seventy-nine thousand, eight hundred forty-two".