30181194 has 32 divisors (see below), whose sum is σ = 67271040. Its totient is φ = 10030176.

The previous prime is 30181181. The next prime is 30181201. The reversal of 30181194 is 49118103.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24067 + ... + 25289.

It is an arithmetic number, because the mean of its divisors is an integer number (2102220).

Almost surely, 2^30181194 is an apocalyptic number.

30181194 is an abundant number, since it is smaller than the sum of its proper divisors (37089846).

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

30181194 is a wasteful number, since it uses less digits than its factorization.

30181194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691 (or 1685 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 30181194 is about 5493.7413481161. The cubic root of 30181194 is about 311.3475641307.

Adding to 30181194 its reverse (49118103), we get a palindrome (79299297).

The spelling of 30181194 in words is "thirty million, one hundred eighty-one thousand, one hundred ninety-four".