29968390 has 16 divisors (see below), whose sum is σ = 54704160. Its totient is φ = 11818240.

The previous prime is 29968387. The next prime is 29968429. The reversal of 29968390 is 9386992.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 29968390.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20395 + ... + 21814.

It is an arithmetic number, because the mean of its divisors is an integer number (3419010).

Almost surely, 2^29968390 is an apocalyptic number.

29968390 is a deficient number, since it is larger than the sum of its proper divisors (24735770).

29968390 is a wasteful number, since it uses less digits than its factorization.

29968390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42287.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 29968390 is about 5474.3392295326. The cubic root of 29968390 is about 310.6140793325.

The spelling of 29968390 in words is "twenty-nine million, nine hundred sixty-eight thousand, three hundred ninety".