42240442040220 has 24 divisors (see below), whose sum is σ = 118273237712784. Its totient is φ = 11264117877376.

The previous prime is 42240442040197. The next prime is 42240442040227. The reversal of 42240442040220 is 2204024404224.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42240442040227) 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, 352003683609 + ... + 352003683728.

It is an arithmetic number, because the mean of its divisors is an integer number (4928051571366).

Almost surely, 2^{42240442040220} is an apocalyptic number.

It is an amenable number.

42240442040220 is an abundant number, since it is smaller than the sum of its proper divisors (76032795672564).

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

42240442040220 is a wasteful number, since it uses less digits than its factorization.

42240442040220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704007367349 (or 704007367347 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 42240442040220 its reverse (2204024404224), we get a palindrome (44444466444444).

The spelling of 42240442040220 in words is "forty-two trillion, two hundred forty billion, four hundred forty-two million, forty thousand, two hundred twenty".