30883828 has 6 divisors (see below), whose sum is σ = 54046706. Its totient is φ = 15441912.

The previous prime is 30883823. The next prime is 30883837. The reversal of 30883828 is 82838803.

It can be written as a sum of positive squares in only one way, i.e., 26440164 + 4443664 = 5142^2 + 2108^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30883823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3860475 + ... + 3860482.

Almost surely, 2^30883828 is an apocalyptic number.

It is an amenable number.

30883828 is a deficient number, since it is larger than the sum of its proper divisors (23162878).

30883828 is a wasteful number, since it uses less digits than its factorization.

30883828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7720961 (or 7720959 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 30883828 is about 5557.3220169431. The cubic root of 30883828 is about 313.7451649229.

The spelling of 30883828 in words is "thirty million, eight hundred eighty-three thousand, eight hundred twenty-eight".