420042104 has 8 divisors (see below), whose sum is σ = 787578960. Its totient is φ = 210021048.

The previous prime is 420042083. The next prime is 420042121. The reversal of 420042104 is 401240024.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26252624 + ... + 26252639.

It is an arithmetic number, because the mean of its divisors is an integer number (98447370).

Almost surely, 2^420042104 is an apocalyptic number.

It is an amenable number.

420042104 is a deficient number, since it is larger than the sum of its proper divisors (367536856).

420042104 is a wasteful number, since it uses less digits than its factorization.

420042104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52505269 (or 52505265 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 420042104 is about 20494.9287385929. The cubic root of 420042104 is about 748.9122626065.

Adding to 420042104 its reverse (401240024), we get a palindrome (821282128).

The spelling of 420042104 in words is "four hundred twenty million, forty-two thousand, one hundred four".