420000038 has 16 divisors (see below), whose sum is σ = 639245520. Its totient is φ = 206939136.

The previous prime is 420000029. The next prime is 420000101. The reversal of 420000038 is 830000024.

It is a junction number, because it is equal to n+sod(n) for n = 419999980 and 420000025.

It is a congruent number.

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, 36218 + ... + 46386.

It is an arithmetic number, because the mean of its divisors is an integer number (39952845).

Almost surely, 2^420000038 is an apocalyptic number.

420000038 is a deficient number, since it is larger than the sum of its proper divisors (219245482).

420000038 is a wasteful number, since it uses less digits than its factorization.

420000038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10471.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 420000038 is about 20493.9024590242. The cubic root of 420000038 is about 748.8872613073.

The spelling of 420000038 in words is "four hundred twenty million, thirty-eight", and thus it is an aban number.