34139680 has 48 divisors (see below), whose sum is σ = 83268864. Its totient is φ = 13213440.

The previous prime is 34139669. The next prime is 34139681. The reversal of 34139680 is 8693143.

It is not an unprimeable number, because it can be changed into a prime (34139681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1519 + ... + 8401.

It is an arithmetic number, because the mean of its divisors is an integer number (1734768).

Almost surely, 2^34139680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34139680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41634432).

34139680 is an abundant number, since it is smaller than the sum of its proper divisors (49129184).

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

34139680 is a wasteful number, since it uses less digits than its factorization.

34139680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6929 (or 6921 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 34139680 is about 5842.9170796786. The cubic root of 34139680 is about 324.4042102412.

The spelling of 34139680 in words is "thirty-four million, one hundred thirty-nine thousand, six hundred eighty".