42255452240 has 80 divisors (see below), whose sum is σ = 101706883200. Its totient is φ = 16307268096.

The previous prime is 42255452177. The next prime is 42255452257. The reversal of 42255452240 is 4225455224.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 42255452240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3527381 + ... + 3539339.

It is an arithmetic number, because the mean of its divisors is an integer number (1271336040).

Almost surely, 2^42255452240 is an apocalyptic number.

42255452240 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 42255452240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50853441600).

42255452240 is an abundant number, since it is smaller than the sum of its proper divisors (59451430960).

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

42255452240 is a wasteful number, since it uses less digits than its factorization.

42255452240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13524 (or 13518 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 35.

The spelling of 42255452240 in words is "forty-two billion, two hundred fifty-five million, four hundred fifty-two thousand, two hundred forty".