20400223310 has 16 divisors (see below), whose sum is σ = 36726236352. Its totient is φ = 8158792800.

The previous prime is 20400223303. The next prime is 20400223339. The reversal of 20400223310 is 1332200402.

It is a super-2 number, since 2×20400223310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94646 + ... + 223065.

It is an arithmetic number, because the mean of its divisors is an integer number (2295389772).

Almost surely, 2^20400223310 is an apocalyptic number.

20400223310 is a deficient number, since it is larger than the sum of its proper divisors (16326013042).

20400223310 is a wasteful number, since it uses less digits than its factorization.

20400223310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324139.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20400223310 its reverse (1332200402), we get a palindrome (21732423712).

The spelling of 20400223310 in words is "twenty billion, four hundred million, two hundred twenty-three thousand, three hundred ten".