20402243414 has 16 divisors (see below), whose sum is σ = 35128010400. Its totient is φ = 8705634624.

The previous prime is 20402243353. The next prime is 20402243419. The reversal of 20402243414 is 41434220402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20402243419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3178679 + ... + 3185090.

It is an arithmetic number, because the mean of its divisors is an integer number (2195500650).

Almost surely, 2^20402243414 is an apocalyptic number.

20402243414 is a deficient number, since it is larger than the sum of its proper divisors (14725766986).

20402243414 is a wasteful number, since it uses less digits than its factorization.

20402243414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6364007.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 20402243414 its reverse (41434220402), we get a palindrome (61836463816).

The spelling of 20402243414 in words is "twenty billion, four hundred two million, two hundred forty-three thousand, four hundred fourteen".