42530213432240 has 160 divisors (see below), whose sum is σ = 105470425710720. Its totient is φ = 15893722939392.

The previous prime is 42530213432107. The next prime is 42530213432249. The reversal of 42530213432240 is 4223431203524.

It is a self number, because there is not a number n which added to its sum of digits gives 42530213432240.

It is not an unprimeable number, because it can be changed into a prime (42530213432249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166351226 + ... + 166606694.

It is an arithmetic number, because the mean of its divisors is an integer number (659190160692).

Almost surely, 2^{42530213432240} is an apocalyptic number.

42530213432240 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 42530213432240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52735212855360).

42530213432240 is an abundant number, since it is smaller than the sum of its proper divisors (62940212278480).

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

42530213432240 is a wasteful number, since it uses less digits than its factorization.

42530213432240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256399 (or 256393 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 42530213432240 its reverse (4223431203524), we get a palindrome (46753644635764).

The spelling of 42530213432240 in words is "forty-two trillion, five hundred thirty billion, two hundred thirteen million, four hundred thirty-two thousand, two hundred forty".