29726225 has 12 divisors (see below), whose sum is σ = 37412784. Its totient is φ = 23424720.

The previous prime is 29726171. The next prime is 29726227. The reversal of 29726225 is 52262792.

It is not a de Polignac number, because 29726225 - 2⁶ = 29726161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29726227) 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 11 ways as a sum of consecutive naturals, for example, 7199 + ... + 10548.

It is an arithmetic number, because the mean of its divisors is an integer number (3117732).

Almost surely, 2^29726225 is an apocalyptic number.

29726225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29726225 is a deficient number, since it is larger than the sum of its proper divisors (7686559).

29726225 is a wasteful number, since it uses less digits than its factorization.

29726225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17824 (or 17819 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 29726225 is about 5452.1761710348. The cubic root of 29726225 is about 309.7751578083.

The spelling of 29726225 in words is "twenty-nine million, seven hundred twenty-six thousand, two hundred twenty-five".