29987042 has 4 divisors (see below), whose sum is σ = 44980566. Its totient is φ = 14993520.

The previous prime is 29987011. The next prime is 29987047. The reversal of 29987042 is 24078992.

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., 17799961 + 12187081 = 4219^2 + 3491^2 .

It is not an unprimeable number, because it can be changed into a prime (29987047) by changing a digit.

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, 7496759 + ... + 7496762.

Almost surely, 2^29987042 is an apocalyptic number.

29987042 is a deficient number, since it is larger than the sum of its proper divisors (14993524).

29987042 is a wasteful number, since it uses less digits than its factorization.

29987042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14993523.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 29987042 is about 5476.0425491408. The cubic root of 29987042 is about 310.6785069095.

The spelling of 29987042 in words is "twenty-nine million, nine hundred eighty-seven thousand, forty-two".