42798112240 has 80 divisors (see below), whose sum is σ = 107375940000. Its totient is φ = 15770520576.

The previous prime is 42798112229. The next prime is 42798112243. The reversal of 42798112240 is 4221189724.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×42798112240² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 42798112193 and 42798112202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42798112243) 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, 477726 + ... + 560194.

It is an arithmetic number, because the mean of its divisors is an integer number (1342199250).

Almost surely, 2^42798112240 is an apocalyptic number.

42798112240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42798112240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53687970000).

42798112240 is an abundant number, since it is smaller than the sum of its proper divisors (64577827760).

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

42798112240 is a wasteful number, since it uses less digits than its factorization.

42798112240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82994 (or 82988 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 42798112240 in words is "forty-two billion, seven hundred ninety-eight million, one hundred twelve thousand, two hundred forty".