42416420 has 24 divisors (see below), whose sum is σ = 89256384. Its totient is φ = 16931936.

The previous prime is 42416389. The next prime is 42416449. The reversal of 42416420 is 2461424.

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 7 ways as a sum of consecutive naturals, for example, 9377 + ... + 13143.

It is an arithmetic number, because the mean of its divisors is an integer number (3719016).

Almost surely, 2^42416420 is an apocalyptic number.

It is an amenable number.

42416420 is an abundant number, since it is smaller than the sum of its proper divisors (46839964).

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

42416420 is a wasteful number, since it uses less digits than its factorization.

42416420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4339 (or 4337 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 42416420 is about 6512.7889571212. The cubic root of 42416420 is about 348.7476877927.

Adding to 42416420 its reverse (2461424), we get a palindrome (44877844).

The spelling of 42416420 in words is "forty-two million, four hundred sixteen thousand, four hundred twenty".