30359028 has 36 divisors (see below), whose sum is σ = 82404672. Its totient is φ = 8673840.

The previous prime is 30359023. The next prime is 30359033. The reversal of 30359028 is 82095303.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30359023) and next prime (30359033).

It is a super-2 number, since 2×30359028² = 1843341162209568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30358986 and 30359004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30359023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25228 + ... + 26403.

Almost surely, 2^30359028 is an apocalyptic number.

It is an amenable number.

30359028 is an abundant number, since it is smaller than the sum of its proper divisors (52045644).

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

30359028 is a wasteful number, since it uses less digits than its factorization.

30359028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51652 (or 51643 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 30359028 is about 5509.9027214643. The cubic root of 30359028 is about 311.9578756410.

The spelling of 30359028 in words is "thirty million, three hundred fifty-nine thousand, twenty-eight".