4149842 has 8 divisors (see below), whose sum is σ = 6439500. Its totient is φ = 2003344.

The previous prime is 4149839. The next prime is 4149881. The reversal of 4149842 is 2489414.

It can be written as a sum of positive squares in 2 ways, for example, as 3964081 + 185761 = 1991^2 + 431^2 .

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4149799 and 4149808.

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, 35717 + ... + 35832.

Almost surely, 2^4149842 is an apocalyptic number.

4149842 is a deficient number, since it is larger than the sum of its proper divisors (2289658).

4149842 is a wasteful number, since it uses less digits than its factorization.

4149842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71580.

The product of its digits is 9216, while the sum is 32.

The square root of 4149842 is about 2037.1160988024. The cubic root of 4149842 is about 160.6980180971.

The spelling of 4149842 in words is "four million, one hundred forty-nine thousand, eight hundred forty-two".