20022454352 has 10 divisors (see below), whose sum is σ = 38793505338. Its totient is φ = 10011227168.

The previous prime is 20022454351. The next prime is 20022454357. The reversal of 20022454352 is 25345422002.

It can be written as a sum of positive squares in only one way, i.e., 20021118016 + 1336336 = 141496^2 + 1156^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022454351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625701683 + ... + 625701714.

Almost surely, 2^20022454352 is an apocalyptic number.

It is an amenable number.

20022454352 is a deficient number, since it is larger than the sum of its proper divisors (18771050986).

20022454352 is a wasteful number, since it uses less digits than its factorization.

20022454352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251403405 (or 1251403399 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 29.

Adding to 20022454352 its reverse (25345422002), we get a palindrome (45367876354).

The spelling of 20022454352 in words is "twenty billion, twenty-two million, four hundred fifty-four thousand, three hundred fifty-two".