20440421150 has 24 divisors (see below), whose sum is σ = 38024742600. Its totient is φ = 8174972960.

The previous prime is 20440421083. The next prime is 20440421159. The reversal of 20440421150 is 5112404402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20440421159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 367901 + ... + 419799.

It is an arithmetic number, because the mean of its divisors is an integer number (1584364275).

Almost surely, 2^20440421150 is an apocalyptic number.

20440421150 is a deficient number, since it is larger than the sum of its proper divisors (17584321450).

20440421150 is a wasteful number, since it uses less digits than its factorization.

20440421150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59788 (or 59783 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 20440421150 its reverse (5112404402), we get a palindrome (25552825552).

The spelling of 20440421150 in words is "twenty billion, four hundred forty million, four hundred twenty-one thousand, one hundred fifty".