29819428 has 12 divisors (see below), whose sum is σ = 55253772. Its totient is φ = 14032640.

The previous prime is 29819407. The next prime is 29819429. The reversal of 29819428 is 82491892.

It can be written as a sum of positive squares in 2 ways, for example, as 27123264 + 2696164 = 5208^2 + 1642^2 .

It is not an unprimeable number, because it can be changed into a prime (29819429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219193 + ... + 219328.

It is an arithmetic number, because the mean of its divisors is an integer number (4604481).

Almost surely, 2^29819428 is an apocalyptic number.

It is an amenable number.

29819428 is a deficient number, since it is larger than the sum of its proper divisors (25434344).

29819428 is a wasteful number, since it uses less digits than its factorization.

29819428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438542 (or 438540 counting only the distinct ones).

The product of its digits is 82944, while the sum is 43.

The square root of 29819428 is about 5460.7168027650. The cubic root of 29819428 is about 310.0985742710.

The spelling of 29819428 in words is "twenty-nine million, eight hundred nineteen thousand, four hundred twenty-eight".