20444434 has 8 divisors (see below), whose sum is σ = 30700800. Its totient is φ = 10210836.

The previous prime is 20444429. The next prime is 20444471. The reversal of 20444434 is 43444402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20444399 and 20444408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3234 + ... + 7165.

It is an arithmetic number, because the mean of its divisors is an integer number (3837600).

Almost surely, 2^20444434 is an apocalyptic number.

20444434 is a deficient number, since it is larger than the sum of its proper divisors (10256366).

20444434 is a wasteful number, since it uses less digits than its factorization.

20444434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11384.

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 20444434 is about 4521.5521671214. The cubic root of 20444434 is about 273.4376820831.

Adding to 20444434 its reverse (43444402), we get a palindrome (63888836).

The spelling of 20444434 in words is "twenty million, four hundred forty-four thousand, four hundred thirty-four".