30885038 has 4 divisors (see below), whose sum is σ = 46327560. Its totient is φ = 15442518.

The previous prime is 30885037. The next prime is 30885097. The reversal of 30885038 is 83058803.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83058803 = 223 ⋅372461.

It is a super-2 number, since 2×30885038² = 1907771144522888, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30884989 and 30885007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30885031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7721258 + ... + 7721261.

It is an arithmetic number, because the mean of its divisors is an integer number (11581890).

Almost surely, 2^30885038 is an apocalyptic number.

30885038 is a deficient number, since it is larger than the sum of its proper divisors (15442522).

30885038 is a wasteful number, since it uses less digits than its factorization.

30885038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15442521.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 30885038 is about 5557.4308812616. The cubic root of 30885038 is about 313.7492622851.

The spelling of 30885038 in words is "thirty million, eight hundred eighty-five thousand, thirty-eight".