42015253240 has 64 divisors (see below), whose sum is σ = 95519324160. Its totient is φ = 16631222400.

The previous prime is 42015253237. The next prime is 42015253249. The reversal of 42015253240 is 4235251024.

42015253240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 42015253199 and 42015253208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42015253249) 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, 8035507 + ... + 8040733.

It is an arithmetic number, because the mean of its divisors is an integer number (1492489440).

Almost surely, 2^42015253240 is an apocalyptic number.

42015253240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42015253240 is an abundant number, since it is smaller than the sum of its proper divisors (53504070920).

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

42015253240 is a wasteful number, since it uses less digits than its factorization.

42015253240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7292 (or 7288 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The spelling of 42015253240 in words is "forty-two billion, fifteen million, two hundred fifty-three thousand, two hundred forty".