29942191 has 16 divisors (see below), whose sum is σ = 31648320. Its totient is φ = 28304640.

The previous prime is 29942179. The next prime is 29942197. The reversal of 29942191 is 19124992.

29942191 is a nontrivial binomial coefficient, being equal to C(7739, 2).

It is a cyclic number.

It is not a de Polignac number, because 29942191 - 2¹⁹ = 29417903 is a prime.

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 29942191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29942197) 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, 274645 + ... + 274753.

It is an arithmetic number, because the mean of its divisors is an integer number (1978020).

Almost surely, 2^29942191 is an apocalyptic number.

29942191 is the 7738-th triangular number.

29942191 is the 2580-th centered nonagonal number.

29942191 is a deficient number, since it is larger than the sum of its proper divisors (1706129).

29942191 is a wasteful number, since it uses less digits than its factorization.

29942191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306.

The product of its digits is 11664, while the sum is 37.

The square root of 29942191 is about 5471.9458147902. The cubic root of 29942191 is about 310.5235378116.

The spelling of 29942191 in words is "twenty-nine million, nine hundred forty-two thousand, one hundred ninety-one".