20400234410 has 32 divisors (see below), whose sum is σ = 37119513600. Its totient is φ = 8071887040.

The previous prime is 20400234403. The next prime is 20400234509. The reversal of 20400234410 is 1443200402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312056 + ... + 371724.

It is an arithmetic number, because the mean of its divisors is an integer number (1159984800).

Almost surely, 2^20400234410 is an apocalyptic number.

20400234410 is a deficient number, since it is larger than the sum of its proper divisors (16719279190).

20400234410 is a wasteful number, since it uses less digits than its factorization.

20400234410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60046.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20400234410 its reverse (1443200402), we get a palindrome (21843434812).

The spelling of 20400234410 in words is "twenty billion, four hundred million, two hundred thirty-four thousand, four hundred ten".