4139442 has 48 divisors (see below), whose sum is σ = 9434880. Its totient is φ = 1310400.

The previous prime is 4139423. The next prime is 4139477. The reversal of 4139442 is 2449314.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52359 + ... + 52437.

It is an arithmetic number, because the mean of its divisors is an integer number (196560).

Almost surely, 2^4139442 is an apocalyptic number.

4139442 is an abundant number, since it is smaller than the sum of its proper divisors (5295438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4139442 is a wasteful number, since it uses less digits than its factorization.

4139442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 196 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 4139442 is about 2034.5618692977. The cubic root of 4139442 is about 160.5636629851.

The spelling of 4139442 in words is "four million, one hundred thirty-nine thousand, four hundred forty-two".