29428399 has 16 divisors (see below), whose sum is σ = 39513600. Its totient is φ = 21166560.

The previous prime is 29428391. The next prime is 29428403. The reversal of 29428399 is 99382492.

It is a cyclic number.

It is not a de Polignac number, because 29428399 - 2³ = 29428391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29428391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13699 + ... + 15700.

It is an arithmetic number, because the mean of its divisors is an integer number (2469600).

Almost surely, 2^29428399 is an apocalyptic number.

29428399 is a deficient number, since it is larger than the sum of its proper divisors (10085201).

29428399 is a wasteful number, since it uses less digits than its factorization.

29428399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29430.

The product of its digits is 279936, while the sum is 46.

The square root of 29428399 is about 5424.7948348302. The cubic root of 29428399 is about 308.7371413069.

The spelling of 29428399 in words is "twenty-nine million, four hundred twenty-eight thousand, three hundred ninety-nine".