20440334 has 8 divisors (see below), whose sum is σ = 30942120. Its totient is φ = 10126296.

The previous prime is 20440319. The next prime is 20440337. The reversal of 20440334 is 43304402.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20440337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46664 + ... + 47099.

It is an arithmetic number, because the mean of its divisors is an integer number (3867765).

Almost surely, 2^20440334 is an apocalyptic number.

20440334 is a deficient number, since it is larger than the sum of its proper divisors (10501786).

20440334 is a wasteful number, since it uses less digits than its factorization.

20440334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93874.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 20440334 is about 4521.0987602573. The cubic root of 20440334 is about 273.4194021372.

Adding to 20440334 its reverse (43304402), we get a palindrome (63744736).

The spelling of 20440334 in words is "twenty million, four hundred forty thousand, three hundred thirty-four".