34136421 has 16 divisors (see below), whose sum is σ = 49788480. Its totient is φ = 20632320.

The previous prime is 34136413. The next prime is 34136423. The reversal of 34136421 is 12463143.

It is not a de Polignac number, because 34136421 - 2³ = 34136413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 34136391 and 34136400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34136423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13095 + ... + 15483.

It is an arithmetic number, because the mean of its divisors is an integer number (3111780).

Almost surely, 2^34136421 is an apocalyptic number.

It is an amenable number.

34136421 is a deficient number, since it is larger than the sum of its proper divisors (15652059).

34136421 is a wasteful number, since it uses less digits than its factorization.

34136421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2836.

The product of its digits is 1728, while the sum is 24.

The square root of 34136421 is about 5842.6381883529. The cubic root of 34136421 is about 324.3938872879.

Adding to 34136421 its reverse (12463143), we get a palindrome (46599564).

The spelling of 34136421 in words is "thirty-four million, one hundred thirty-six thousand, four hundred twenty-one".