30825842 has 16 divisors (see below), whose sum is σ = 49807872. Its totient is φ = 14266560.

The previous prime is 30825833. The next prime is 30825863. The reversal of 30825842 is 24852803.

It is a junction number, because it is equal to n+sod(n) for n = 30825799 and 30825808.

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, 9383 + ... + 12234.

It is an arithmetic number, because the mean of its divisors is an integer number (3112992).

Almost surely, 2^30825842 is an apocalyptic number.

30825842 is a deficient number, since it is larger than the sum of its proper divisors (18982030).

30825842 is a wasteful number, since it uses less digits than its factorization.

30825842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21673.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 30825842 is about 5552.1024846449. The cubic root of 30825842 is about 313.5486842597.

The spelling of 30825842 in words is "thirty million, eight hundred twenty-five thousand, eight hundred forty-two".