30842538 has 16 divisors (see below), whose sum is σ = 61754880. Its totient is φ = 10269216.

The previous prime is 30842527. The next prime is 30842543. The reversal of 30842538 is 83524803.

It is a junction number, because it is equal to n+sod(n) for n = 30842499 and 30842508.

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, 4158 + ... + 8886.

It is an arithmetic number, because the mean of its divisors is an integer number (3859680).

Almost surely, 2^30842538 is an apocalyptic number.

30842538 is an abundant number, since it is smaller than the sum of its proper divisors (30912342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30842538 is a wasteful number, since it uses less digits than its factorization.

30842538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5821.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 30842538 is about 5553.6058556581. The cubic root of 30842538 is about 313.6052824864.

The spelling of 30842538 in words is "thirty million, eight hundred forty-two thousand, five hundred thirty-eight".