34128434 has 4 divisors (see below), whose sum is σ = 51192654. Its totient is φ = 17064216.

The previous prime is 34128433. The next prime is 34128443. The reversal of 34128434 is 43482143.

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

It can be written as a sum of positive squares in only one way, i.e., 21132409 + 12996025 = 4597^2 + 3605^2 .

It is a junction number, because it is equal to n+sod(n) for n = 34128397 and 34128406.

It is not an unprimeable number, because it can be changed into a prime (34128433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8532107 + ... + 8532110.

Almost surely, 2^34128434 is an apocalyptic number.

34128434 is a deficient number, since it is larger than the sum of its proper divisors (17064220).

34128434 is a wasteful number, since it uses less digits than its factorization.

34128434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17064219.

The product of its digits is 9216, while the sum is 29.

The square root of 34128434 is about 5841.9546386462. The cubic root of 34128434 is about 324.3685855135.

The spelling of 34128434 in words is "thirty-four million, one hundred twenty-eight thousand, four hundred thirty-four".