42103828 has 24 divisors (see below), whose sum is σ = 81912320. Its totient is φ = 18804960.

The previous prime is 42103819. The next prime is 42103861. The reversal of 42103828 is 82830124.

It is a junction number, because it is equal to n+sod(n) for n = 42103796 and 42103805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11448 + ... + 14671.

Almost surely, 2^42103828 is an apocalyptic number.

It is an amenable number.

42103828 is a deficient number, since it is larger than the sum of its proper divisors (39808492).

42103828 is a wasteful number, since it uses less digits than its factorization.

42103828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26167 (or 26165 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 42103828 is about 6488.7462579454. The cubic root of 42103828 is about 347.8888644108. Note that the first 4 decimals are identical.

The spelling of 42103828 in words is "forty-two million, one hundred three thousand, eight hundred twenty-eight".