20353400224 has 12 divisors (see below), whose sum is σ = 40070756754. Its totient is φ = 10176700096.

The previous prime is 20353400201. The next prime is 20353400257. The reversal of 20353400224 is 42200435302.

It can be written as a sum of positive squares in only one way, i.e., 10349399824 + 10004000400 = 101732^2 + 100020^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318021847 + ... + 318021910.

Almost surely, 2^20353400224 is an apocalyptic number.

It is an amenable number.

20353400224 is a deficient number, since it is larger than the sum of its proper divisors (19717356530).

20353400224 is an equidigital number, since it uses as much as digits as its factorization.

20353400224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636043767 (or 636043759 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 20353400224 its reverse (42200435302), we get a palindrome (62553835526).

The spelling of 20353400224 in words is "twenty billion, three hundred fifty-three million, four hundred thousand, two hundred twenty-four".