20120444 has 6 divisors (see below), whose sum is σ = 35210784. Its totient is φ = 10060220.

The previous prime is 20120437. The next prime is 20120447. The reversal of 20120444 is 44402102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2515052 + ... + 2515059.

It is an arithmetic number, because the mean of its divisors is an integer number (5868464).

Almost surely, 2^20120444 is an apocalyptic number.

It is an amenable number.

20120444 is a deficient number, since it is larger than the sum of its proper divisors (15090340).

20120444 is a wasteful number, since it uses less digits than its factorization.

20120444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5030115 (or 5030113 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 20120444 is about 4485.5817905819. The cubic root of 20120444 is about 271.9855636802.

Adding to 20120444 its reverse (44402102), we get a palindrome (64522546).

The spelling of 20120444 in words is "twenty million, one hundred twenty thousand, four hundred forty-four".