34139442 has 16 divisors (see below), whose sum is σ = 68392800. Its totient is φ = 11360832.

The previous prime is 34139423. The next prime is 34139449. The reversal of 34139442 is 24493143.

It is not an unprimeable number, because it can be changed into a prime (34139449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567 + ... + 8282.

It is an arithmetic number, because the mean of its divisors is an integer number (4274550).

Almost surely, 2^34139442 is an apocalyptic number.

34139442 is an abundant number, since it is smaller than the sum of its proper divisors (34253358).

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

34139442 is a wasteful number, since it uses less digits than its factorization.

34139442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9497.

The product of its digits is 10368, while the sum is 30.

The square root of 34139442 is about 5842.8967131039. The cubic root of 34139442 is about 324.4034563933.

The spelling of 34139442 in words is "thirty-four million, one hundred thirty-nine thousand, four hundred forty-two".