30402194 has 8 divisors (see below), whose sum is σ = 45630540. Its totient is φ = 15192016.

The previous prime is 30402193. The next prime is 30402199. The reversal of 30402194 is 49120403.

It can be written as a sum of positive squares in 2 ways, for example, as 30393169 + 9025 = 5513^2 + 95^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (30402191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 992 + ... + 7860.

Almost surely, 2^30402194 is an apocalyptic number.

30402194 is a deficient number, since it is larger than the sum of its proper divisors (15228346).

30402194 is a wasteful number, since it uses less digits than its factorization.

30402194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9084.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 30402194 is about 5513.8184591080. The cubic root of 30402194 is about 312.1056581116.

Adding to 30402194 its reverse (49120403), we get a palindrome (79522597).

The spelling of 30402194 in words is "thirty million, four hundred two thousand, one hundred ninety-four".