20140400234 has 32 divisors (see below), whose sum is σ = 31292835840. Its totient is φ = 9715536000.

The previous prime is 20140400227. The next prime is 20140400251. The reversal of 20140400234 is 43200404102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2831927 + ... + 2839029.

It is an arithmetic number, because the mean of its divisors is an integer number (977901120).

Almost surely, 2^20140400234 is an apocalyptic number.

20140400234 is a deficient number, since it is larger than the sum of its proper divisors (11152435606).

20140400234 is a wasteful number, since it uses less digits than its factorization.

20140400234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7526.

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

Adding to 20140400234 its reverse (43200404102), we get a palindrome (63340804336).

The spelling of 20140400234 in words is "twenty billion, one hundred forty million, four hundred thousand, two hundred thirty-four".