30398136 has 16 divisors (see below), whose sum is σ = 75995400. Its totient is φ = 10132704.

The previous prime is 30398129. The next prime is 30398141. The reversal of 30398136 is 63189303.

It is a junction number, because it is equal to n+sod(n) for n = 30398097 and 30398106.

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, 633271 + ... + 633318.

Almost surely, 2^30398136 is an apocalyptic number.

It is an amenable number.

30398136 is an abundant number, since it is smaller than the sum of its proper divisors (45597264).

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

30398136 is a wasteful number, since it uses less digits than its factorization.

30398136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266598 (or 1266594 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 30398136 is about 5513.4504622786. The cubic root of 30398136 is about 312.0917711630.

It can be divided in two parts, 3039 and 8136, that added together give a triangular number (11175 = T₁₄₉).

The spelling of 30398136 in words is "thirty million, three hundred ninety-eight thousand, one hundred thirty-six".