42401220140 has 96 divisors (see below), whose sum is σ = 96782273280. Its totient is φ = 15542718464.

The previous prime is 42401220137. The next prime is 42401220167. The reversal of 42401220140 is 4102210424.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3141326 + ... + 3154794.

It is an arithmetic number, because the mean of its divisors is an integer number (1008148680).

Almost surely, 2^42401220140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42401220140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48391136640).

42401220140 is an abundant number, since it is smaller than the sum of its proper divisors (54381053140).

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

42401220140 is a wasteful number, since it uses less digits than its factorization.

42401220140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13739 (or 13737 counting only the distinct ones).

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

Adding to 42401220140 its reverse (4102210424), we get a palindrome (46503430564).

The spelling of 42401220140 in words is "forty-two billion, four hundred one million, two hundred twenty thousand, one hundred forty".