30728202 has 8 divisors (see below), whose sum is σ = 61456416. Its totient is φ = 10242732.

The previous prime is 30728179. The next prime is 30728219. The reversal of 30728202 is 20282703.

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

30728202 is an admirable 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, 2560678 + ... + 2560689.

It is an arithmetic number, because the mean of its divisors is an integer number (7682052).

Almost surely, 2^30728202 is an apocalyptic number.

30728202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30728202 is a wasteful number, since it uses less digits than its factorization.

30728202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5121372.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 30728202 is about 5543.3024452938. The cubic root of 30728202 is about 313.2172818553.

The spelling of 30728202 in words is "thirty million, seven hundred twenty-eight thousand, two hundred two".