29967142 has 16 divisors (see below), whose sum is σ = 48844800. Its totient is φ = 13736520.

The previous prime is 29967139. The next prime is 29967143. The reversal of 29967142 is 24176992.

It is a junction number, because it is equal to n+sod(n) for n = 29967095 and 29967104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29967143) 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 in 7 ways as a sum of consecutive naturals, for example, 11542 + ... + 13897.

It is an arithmetic number, because the mean of its divisors is an integer number (3052800).

Almost surely, 2^29967142 is an apocalyptic number.

29967142 is a deficient number, since it is larger than the sum of its proper divisors (18877658).

29967142 is a wasteful number, since it uses less digits than its factorization.

29967142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25491.

The product of its digits is 54432, while the sum is 40.

The square root of 29967142 is about 5474.2252419863. The cubic root of 29967142 is about 310.6097675476.

The spelling of 29967142 in words is "twenty-nine million, nine hundred sixty-seven thousand, one hundred forty-two".