42420102420 has 24 divisors (see below), whose sum is σ = 118776286944. Its totient is φ = 11312027296.

The previous prime is 42420102409. The next prime is 42420102451. The reversal of 42420102420 is 2420102424.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 353500794 + ... + 353500913.

It is an arithmetic number, because the mean of its divisors is an integer number (4949011956).

Almost surely, 2^42420102420 is an apocalyptic number.

It is an amenable number.

42420102420 is an abundant number, since it is smaller than the sum of its proper divisors (76356184524).

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

42420102420 is a wasteful number, since it uses less digits than its factorization.

42420102420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707001719 (or 707001717 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 42420102420 its reverse (2420102424), we get a palindrome (44840204844).

The spelling of 42420102420 in words is "forty-two billion, four hundred twenty million, one hundred two thousand, four hundred twenty".