20014142240 has 48 divisors (see below), whose sum is σ = 47342163960. Its totient is φ = 7995709440.

The previous prime is 20014142209. The next prime is 20014142243. The reversal of 20014142240 is 4224141002.

It can be written as a sum of positive squares in 4 ways, for example, as 19970211856 + 43930384 = 141316^2 + 6628^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (20014142243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52130 + ... + 206750.

Almost surely, 2^20014142240 is an apocalyptic number.

20014142240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20014142240 is an abundant number, since it is smaller than the sum of its proper divisors (27328021720).

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

20014142240 is a wasteful number, since it uses less digits than its factorization.

20014142240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155445 (or 155437 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 20014142240 its reverse (4224141002), we get a palindrome (24238283242).

The spelling of 20014142240 in words is "twenty billion, fourteen million, one hundred forty-two thousand, two hundred forty".