20140235454 has 16 divisors (see below), whose sum is σ = 40282663680. Its totient is φ = 6713046360.

The previous prime is 20140235449. The next prime is 20140235459. The reversal of 20140235454 is 45453204102.

It is an interprime number because it is at equal distance from previous prime (20140235449) and next prime (20140235459).

It is a super-2 number, since 2×20140235454² (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 (20140235459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43309 + ... + 205319.

It is an arithmetic number, because the mean of its divisors is an integer number (2517666480).

Almost surely, 2^20140235454 is an apocalyptic number.

20140235454 is an abundant number, since it is smaller than the sum of its proper divisors (20142428226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20140235454 is a wasteful number, since it uses less digits than its factorization.

20140235454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182735.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 20140235454 its reverse (45453204102), we get a palindrome (65593439556).

The spelling of 20140235454 in words is "twenty billion, one hundred forty million, two hundred thirty-five thousand, four hundred fifty-four".