30414728 has 16 divisors (see below), whose sum is σ = 57087180. Its totient is φ = 15191488.

The previous prime is 30414701. The next prime is 30414733. The reversal of 30414728 is 82741403.

It can be written as a sum of positive squares in 2 ways, for example, as 30052324 + 362404 = 5482^2 + 602^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30414728.

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, 11726 + ... + 14082.

Almost surely, 2^30414728 is an apocalyptic number.

It is an amenable number.

30414728 is a deficient number, since it is larger than the sum of its proper divisors (26672452).

30414728 is a wasteful number, since it uses less digits than its factorization.

30414728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3976 (or 3972 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 30414728 is about 5514.9549408857. The cubic root of 30414728 is about 312.1485431180.

The spelling of 30414728 in words is "thirty million, four hundred fourteen thousand, seven hundred twenty-eight".