20444030 has 32 divisors (see below), whose sum is σ = 39204000. Its totient is φ = 7649280.

The previous prime is 20444027. The next prime is 20444059. The reversal of 20444030 is 3044402.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40721 + ... + 41219.

It is an arithmetic number, because the mean of its divisors is an integer number (1225125).

Almost surely, 2^20444030 is an apocalyptic number.

20444030 is a deficient number, since it is larger than the sum of its proper divisors (18759970).

20444030 is a wasteful number, since it uses less digits than its factorization.

20444030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 20444030 is about 4521.5074919765. The cubic root of 20444030 is about 273.4358809482.

Adding to 20444030 its reverse (3044402), we get a palindrome (23488432).

The spelling of 20444030 in words is "twenty million, four hundred forty-four thousand, thirty".