20014400434 has 16 divisors (see below), whose sum is σ = 34891934400. Its totient is φ = 8432216784.

The previous prime is 20014400411. The next prime is 20014400453. The reversal of 20014400434 is 43400441002.

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 7 ways as a sum of consecutive naturals, for example, 12114429 + ... + 12116080.

It is an arithmetic number, because the mean of its divisors is an integer number (2180745900).

Almost surely, 2^20014400434 is an apocalyptic number.

20014400434 is a deficient number, since it is larger than the sum of its proper divisors (14877533966).

20014400434 is a wasteful number, since it uses less digits than its factorization.

20014400434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24230577.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 20014400434 its reverse (43400441002), we get a palindrome (63414841436).

The spelling of 20014400434 in words is "twenty billion, fourteen million, four hundred thousand, four hundred thirty-four".