29978230 has 8 divisors (see below), whose sum is σ = 53960832. Its totient is φ = 11991288.

The previous prime is 29978213. The next prime is 29978233. The reversal of 29978230 is 3287992.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29978233) 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, 1498902 + ... + 1498921.

It is an arithmetic number, because the mean of its divisors is an integer number (6745104).

Almost surely, 2^29978230 is an apocalyptic number.

29978230 is a deficient number, since it is larger than the sum of its proper divisors (23982602).

29978230 is a wasteful number, since it uses less digits than its factorization.

29978230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2997830.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 29978230 is about 5475.2378943750. The cubic root of 29978230 is about 310.6480719057.

The spelling of 29978230 in words is "twenty-nine million, nine hundred seventy-eight thousand, two hundred thirty".