29972265 has 16 divisors (see below), whose sum is σ = 48052608. Its totient is φ = 15952896.

The previous prime is 29972251. The next prime is 29972281. The reversal of 29972265 is 56227992.

It is not a de Polignac number, because 29972265 - 2¹⁰ = 29971241 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6924 + ... + 10386.

It is an arithmetic number, because the mean of its divisors is an integer number (3003288).

Almost surely, 2^29972265 is an apocalyptic number.

It is an amenable number.

29972265 is a deficient number, since it is larger than the sum of its proper divisors (18080343).

29972265 is a wasteful number, since it uses less digits than its factorization.

29972265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4048.

The product of its digits is 136080, while the sum is 42.

The square root of 29972265 is about 5474.6931420857. The cubic root of 29972265 is about 310.6274665235.

The spelling of 29972265 in words is "twenty-nine million, nine hundred seventy-two thousand, two hundred sixty-five".