42251544240 has 160 divisors (see below), whose sum is σ = 135800832000. Its totient is φ = 10855572480.

The previous prime is 42251544227. The next prime is 42251544281. The reversal of 42251544240 is 4244515224.

42251544240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1691361 + ... + 1716159.

It is an arithmetic number, because the mean of its divisors is an integer number (848755200).

Almost surely, 2^42251544240 is an apocalyptic number.

42251544240 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 42251544240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67900416000).

42251544240 is an abundant number, since it is smaller than the sum of its proper divisors (93549287760).

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

42251544240 is a wasteful number, since it uses less digits than its factorization.

42251544240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25075 (or 25069 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 33.

The spelling of 42251544240 in words is "forty-two billion, two hundred fifty-one million, five hundred forty-four thousand, two hundred forty".