20434334 has 4 divisors (see below), whose sum is σ = 30651504. Its totient is φ = 10217166.

The previous prime is 20434321. The next prime is 20434369. The reversal of 20434334 is 43343402.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43343402 = 2 ⋅21671701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5108582 + ... + 5108585.

It is an arithmetic number, because the mean of its divisors is an integer number (7662876).

Almost surely, 2^20434334 is an apocalyptic number.

20434334 is a deficient number, since it is larger than the sum of its proper divisors (10217170).

20434334 is a wasteful number, since it uses less digits than its factorization.

20434334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10217169.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 20434334 is about 4520.4351560442. The cubic root of 20434334 is about 273.3926465901.

Adding to 20434334 its reverse (43343402), we get a palindrome (63777736).

The spelling of 20434334 in words is "twenty million, four hundred thirty-four thousand, three hundred thirty-four".