30136810 has 16 divisors (see below), whose sum is σ = 59177952. Its totient is φ = 10958800.

The previous prime is 30136781. The next prime is 30136811. The reversal of 30136810 is 1863103.

It is a super-2 number, since 2×30136810² = 1816454633952200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (30136811) 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, 136876 + ... + 137095.

It is an arithmetic number, because the mean of its divisors is an integer number (3698622).

Almost surely, 2^30136810 is an apocalyptic number.

30136810 is a deficient number, since it is larger than the sum of its proper divisors (29041142).

30136810 is a wasteful number, since it uses less digits than its factorization.

30136810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273989.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 30136810 is about 5489.7003561215. The cubic root of 30136810 is about 311.1948682747.

Adding to 30136810 its reverse (1863103), we get a palindrome (31999913).

The spelling of 30136810 in words is "thirty million, one hundred thirty-six thousand, eight hundred ten".