34139438 has 16 divisors (see below), whose sum is σ = 53228880. Its totient is φ = 16402176.

The previous prime is 34139423. The next prime is 34139449. The reversal of 34139438 is 83493143.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 34139398 and 34139407.

It is a congruent number.

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, 11870 + ... + 14462.

It is an arithmetic number, because the mean of its divisors is an integer number (3326805).

Almost surely, 2^34139438 is an apocalyptic number.

34139438 is a deficient number, since it is larger than the sum of its proper divisors (19089442).

34139438 is a wasteful number, since it uses less digits than its factorization.

34139438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2851.

The product of its digits is 31104, while the sum is 35.

The square root of 34139438 is about 5842.8963708079. The cubic root of 34139438 is about 324.4034437235.

The spelling of 34139438 in words is "thirty-four million, one hundred thirty-nine thousand, four hundred thirty-eight".