42020401524 has 48 divisors (see below), whose sum is σ = 99539596800. Its totient is φ = 13793779296.

The previous prime is 42020401523. The next prime is 42020401537. The reversal of 42020401524 is 42510402024.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42020401494 and 42020401503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42020401523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4400347 + ... + 4409885.

It is an arithmetic number, because the mean of its divisors is an integer number (2073741600).

Almost surely, 2^42020401524 is an apocalyptic number.

It is an amenable number.

42020401524 is an abundant number, since it is smaller than the sum of its proper divisors (57519195276).

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

42020401524 is a wasteful number, since it uses less digits than its factorization.

42020401524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15092 (or 15090 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 42020401524 its reverse (42510402024), we get a palindrome (84530803548).

The spelling of 42020401524 in words is "forty-two billion, twenty million, four hundred one thousand, five hundred twenty-four".