29993642 has 8 divisors (see below), whose sum is σ = 51417696. Its totient is φ = 12854412.

The previous prime is 29993641. The next prime is 29993657. The reversal of 29993642 is 24639992.

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

It is a junction number, because it is equal to n+sod(n) for n = 29993593 and 29993602.

It is not an unprimeable number, because it can be changed into a prime (29993641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1071188 + ... + 1071215.

It is an arithmetic number, because the mean of its divisors is an integer number (6427212).

Almost surely, 2^29993642 is an apocalyptic number.

29993642 is a deficient number, since it is larger than the sum of its proper divisors (21424054).

29993642 is a wasteful number, since it uses less digits than its factorization.

29993642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142412.

The product of its digits is 209952, while the sum is 44.

The square root of 29993642 is about 5476.6451409599. The cubic root of 29993642 is about 310.7012981731.

The spelling of 29993642 in words is "twenty-nine million, nine hundred ninety-three thousand, six hundred forty-two".