29986018 has 8 divisors (see below), whose sum is σ = 45002412. Its totient is φ = 14985216.

The previous prime is 29986013. The next prime is 29986027. The reversal of 29986018 is 81068992.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18378369 + 11607649 = 4287^2 + 3407^2 .

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

It is a super-2 number, since 2×29986018² = 1798322550992648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29986013) 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, 4746 + ... + 9082.

Almost surely, 2^29986018 is an apocalyptic number.

29986018 is a deficient number, since it is larger than the sum of its proper divisors (15016394).

29986018 is a wasteful number, since it uses less digits than its factorization.

29986018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7796.

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 29986018 is about 5475.9490501647. The cubic root of 29986018 is about 310.6749705108.

The spelling of 29986018 in words is "twenty-nine million, nine hundred eighty-six thousand, eighteen".