30386136 has 32 divisors (see below), whose sum is σ = 82872000. Its totient is φ = 9207840.

The previous prime is 30386129. The next prime is 30386137. The reversal of 30386136 is 63168303.

It is a super-2 number, since 2×30386136² = 1846634522020992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30386137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57286 + ... + 57813.

It is an arithmetic number, because the mean of its divisors is an integer number (2589750).

Almost surely, 2^30386136 is an apocalyptic number.

It is an amenable number.

30386136 is an abundant number, since it is smaller than the sum of its proper divisors (52485864).

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

30386136 is a wasteful number, since it uses less digits than its factorization.

30386136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115119 (or 115115 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 30386136 is about 5512.3621071189. The cubic root of 30386136 is about 312.0506985331.

The spelling of 30386136 in words is "thirty million, three hundred eighty-six thousand, one hundred thirty-six".