30379028 has 12 divisors (see below), whose sum is σ = 53204340. Its totient is φ = 15177792.

The previous prime is 30379007. The next prime is 30379057. The reversal of 30379028 is 82097303.

It can be written as a sum of positive squares in 2 ways, for example, as 11957764 + 18421264 = 3458^2 + 4292^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30378985 and 30379003.

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, 5768 + ... + 9696.

It is an arithmetic number, because the mean of its divisors is an integer number (4433695).

Almost surely, 2^30379028 is an apocalyptic number.

It is an amenable number.

30379028 is a deficient number, since it is larger than the sum of its proper divisors (22825312).

30379028 is a wasteful number, since it uses less digits than its factorization.

30379028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5866 (or 5864 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 30379028 is about 5511.7173367291. The cubic root of 30379028 is about 312.0263647455.

The spelling of 30379028 in words is "thirty million, three hundred seventy-nine thousand, twenty-eight".