29949231 has 16 divisors (see below), whose sum is σ = 43712480. Its totient is φ = 18126720.

The previous prime is 29949221. The next prime is 29949233. The reversal of 29949231 is 13294992.

It is not a de Polignac number, because 29949231 - 2⁹ = 29948719 is a prime.

It is a super-2 number, since 2×29949231² = 1793912874982722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29949231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29949233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3916 + ... + 8673.

It is an arithmetic number, because the mean of its divisors is an integer number (2732030).

Almost surely, 2^29949231 is an apocalyptic number.

29949231 is a deficient number, since it is larger than the sum of its proper divisors (13763249).

29949231 is a wasteful number, since it uses less digits than its factorization.

29949231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12666.

The product of its digits is 34992, while the sum is 39.

The square root of 29949231 is about 5472.5890582064. The cubic root of 29949231 is about 310.5478726418.

The spelling of 29949231 in words is "twenty-nine million, nine hundred forty-nine thousand, two hundred thirty-one".