34129894 has 4 divisors (see below), whose sum is σ = 51194844. Its totient is φ = 17064946.

The previous prime is 34129891. The next prime is 34129919. The reversal of 34129894 is 49892143.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34129891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8532472 + ... + 8532475.

It is an arithmetic number, because the mean of its divisors is an integer number (12798711).

Almost surely, 2^34129894 is an apocalyptic number.

34129894 is a deficient number, since it is larger than the sum of its proper divisors (17064950).

34129894 is a wasteful number, since it uses less digits than its factorization.

34129894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17064949.

The product of its digits is 62208, while the sum is 40.

The square root of 34129894 is about 5842.0795954865. The cubic root of 34129894 is about 324.3732108979.

The spelling of 34129894 in words is "thirty-four million, one hundred twenty-nine thousand, eight hundred ninety-four".