20141420440 has 64 divisors (see below), whose sum is σ = 49242240000. Its totient is φ = 7386318720.

The previous prime is 20141420423. The next prime is 20141420441. The reversal of 20141420440 is 4402414102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20141420441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403890 + ... + 451009.

It is an arithmetic number, because the mean of its divisors is an integer number (769410000).

Almost surely, 2^20141420440 is an apocalyptic number.

20141420440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20141420440 is an abundant number, since it is smaller than the sum of its proper divisors (29100819560).

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

20141420440 is a wasteful number, since it uses less digits than its factorization.

20141420440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854960 (or 854956 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 20141420440 its reverse (4402414102), we get a palindrome (24543834542).

The spelling of 20141420440 in words is "twenty billion, one hundred forty-one million, four hundred twenty thousand, four hundred forty".