20134444 has 24 divisors (see below), whose sum is σ = 39379536. Its totient is φ = 8928000.

The previous prime is 20134423. The next prime is 20134463. The reversal of 20134444 is 44443102.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3777 + ... + 7384.

It is an arithmetic number, because the mean of its divisors is an integer number (1640814).

Almost surely, 2^20134444 is an apocalyptic number.

It is an amenable number.

20134444 is a deficient number, since it is larger than the sum of its proper divisors (19245092).

20134444 is a wasteful number, since it uses less digits than its factorization.

20134444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11217 (or 11215 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 20134444 is about 4487.1420748624. The cubic root of 20134444 is about 272.0486324518.

Adding to 20134444 its reverse (44443102), we get a palindrome (64577546).

The spelling of 20134444 in words is "twenty million, one hundred thirty-four thousand, four hundred forty-four".