29806642 has 4 divisors (see below), whose sum is σ = 44709966. Its totient is φ = 14903320.

The previous prime is 29806619. The next prime is 29806657. The reversal of 29806642 is 24660892.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15374241 + 14432401 = 3921^2 + 3799^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7451659 + ... + 7451662.

Almost surely, 2^29806642 is an apocalyptic number.

29806642 is a deficient number, since it is larger than the sum of its proper divisors (14903324).

29806642 is a wasteful number, since it uses less digits than its factorization.

29806642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14903323.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 29806642 is about 5459.5459518169. The cubic root of 29806642 is about 310.0542464903.

The spelling of 29806642 in words is "twenty-nine million, eight hundred six thousand, six hundred forty-two".