29728942 has 8 divisors (see below), whose sum is σ = 44771832. Its totient is φ = 14805000.

The previous prime is 29728913. The next prime is 29728943. The reversal of 29728942 is 24982792.

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 (29728943) 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, 29109 + ... + 30112.

It is an arithmetic number, because the mean of its divisors is an integer number (5596479).

Almost surely, 2^29728942 is an apocalyptic number.

29728942 is a deficient number, since it is larger than the sum of its proper divisors (15042890).

29728942 is a wasteful number, since it uses less digits than its factorization.

29728942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59474.

The product of its digits is 145152, while the sum is 43.

The square root of 29728942 is about 5452.4253319051. The cubic root of 29728942 is about 309.7845954173.

The spelling of 29728942 in words is "twenty-nine million, seven hundred twenty-eight thousand, nine hundred forty-two".