42101420 has 12 divisors (see below), whose sum is σ = 88413024. Its totient is φ = 16840560.

The previous prime is 42101419. The next prime is 42101467. The reversal of 42101420 is 2410124.

It is a junction number, because it is equal to n+sod(n) for n = 42101395 and 42101404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1052516 + ... + 1052555.

It is an arithmetic number, because the mean of its divisors is an integer number (7367752).

Almost surely, 2^42101420 is an apocalyptic number.

It is an amenable number.

42101420 is an abundant number, since it is smaller than the sum of its proper divisors (46311604).

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

42101420 is a wasteful number, since it uses less digits than its factorization.

42101420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105080 (or 2105078 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 42101420 is about 6488.5607032685. The cubic root of 42101420 is about 347.8822321369.

Adding to 42101420 its reverse (2410124), we get a palindrome (44511544).

The spelling of 42101420 in words is "forty-two million, one hundred one thousand, four hundred twenty".