30528038 has 8 divisors (see below), whose sum is σ = 47783088. Its totient is φ = 14600344.

The previous prime is 30528011. The next prime is 30528119. The reversal of 30528038 is 83082503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×30528038² = 1863922208258888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30528038.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331781 + ... + 331872.

It is an arithmetic number, because the mean of its divisors is an integer number (5972886).

Almost surely, 2^30528038 is an apocalyptic number.

30528038 is a deficient number, since it is larger than the sum of its proper divisors (17255050).

30528038 is a wasteful number, since it uses less digits than its factorization.

30528038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663678.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 30528038 is about 5525.2183667254. The cubic root of 30528038 is about 312.5356989617.

The spelling of 30528038 in words is "thirty million, five hundred twenty-eight thousand, thirty-eight".