20400033310 has 48 divisors (see below), whose sum is σ = 38560362624. Its totient is φ = 7769779776.

The previous prime is 20400033293. The next prime is 20400033403. The reversal of 20400033310 is 1333000402.

It is a super-2 number, since 2×20400033310² (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 23 ways as a sum of consecutive naturals, for example, 1171024 + ... + 1188316.

It is an arithmetic number, because the mean of its divisors is an integer number (803340888).

Almost surely, 2^20400033310 is an apocalyptic number.

20400033310 is a deficient number, since it is larger than the sum of its proper divisors (18160329314).

20400033310 is a wasteful number, since it uses less digits than its factorization.

20400033310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17569 (or 17546 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20400033310 its reverse (1333000402), we get a palindrome (21733033712).

The spelling of 20400033310 in words is "twenty billion, four hundred million, thirty-three thousand, three hundred ten".