20444402 has 12 divisors (see below), whose sum is σ = 33708318. Its totient is φ = 9292800.

The previous prime is 20444381. The next prime is 20444429.

20444402 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 20241001 + 203401 = 4499^2 + 451^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41999 + ... + 42482.

Almost surely, 2^20444402 is an apocalyptic number.

20444402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20444402 is a deficient number, since it is larger than the sum of its proper divisors (13263916).

20444402 is a wasteful number, since it uses less digits than its factorization.

20444402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84505 (or 84494 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 20444402 is about 4521.5486285121. The cubic root of 20444402 is about 273.4375394199.

It can be divided in two parts, 2044 and 4402, that added together give a palindrome (6446).

The spelling of 20444402 in words is "twenty million, four hundred forty-four thousand, four hundred two".