20140045431 has 64 divisors (see below), whose sum is σ = 30229731840. Its totient is φ = 11824496640.

The previous prime is 20140045411. The next prime is 20140045439. The reversal of 20140045431 is 13454004102.

It is not a de Polignac number, because 20140045431 - 2⁵ = 20140045399 is a prime.

It is a super-2 number, since 2×20140045431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20140045439) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 46512591 + ... + 46513023.

It is an arithmetic number, because the mean of its divisors is an integer number (472339560).

Almost surely, 2^20140045431 is an apocalyptic number.

20140045431 is a deficient number, since it is larger than the sum of its proper divisors (10089686409).

20140045431 is a wasteful number, since it uses less digits than its factorization.

20140045431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 20140045431 its reverse (13454004102), we get a palindrome (33594049533).

The spelling of 20140045431 in words is "twenty billion, one hundred forty million, forty-five thousand, four hundred thirty-one".