42000046 has 32 divisors (see below), whose sum is σ = 70917120. Its totient is φ = 18492000.

The previous prime is 42000037. The next prime is 42000059. The reversal of 42000046 is 64000024.

42000046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 41999993 and 42000029.

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 in 15 ways as a sum of consecutive naturals, for example, 156000 + ... + 156268.

It is an arithmetic number, because the mean of its divisors is an integer number (2216160).

Almost surely, 2^42000046 is an apocalyptic number.

42000046 is a deficient number, since it is larger than the sum of its proper divisors (28917074).

42000046 is a wasteful number, since it uses less digits than its factorization.

42000046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 42000046 is about 6480.7442473839. The cubic root of 42000046 is about 347.6027913912.

The spelling of 42000046 in words is "forty-two million, forty-six", and thus it is an aban number, an eban number, and an uban number.