29972186 has 8 divisors (see below), whose sum is σ = 45184800. Its totient is φ = 14910588.

The previous prime is 29972179. The next prime is 29972191. The reversal of 29972186 is 68127992.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37256 + ... + 38051.

It is an arithmetic number, because the mean of its divisors is an integer number (5648100).

Almost surely, 2^29972186 is an apocalyptic number.

29972186 is a deficient number, since it is larger than the sum of its proper divisors (15212614).

29972186 is a wasteful number, since it uses less digits than its factorization.

29972186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75508.

The product of its digits is 108864, while the sum is 44.

The square root of 29972186 is about 5474.6859270647. The cubic root of 29972186 is about 310.6271936090.

The spelling of 29972186 in words is "twenty-nine million, nine hundred seventy-two thousand, one hundred eighty-six".