29138404 has 9 divisors (see below), whose sum is σ = 51011107. Its totient is φ = 14563804.

The previous prime is 29138383. The next prime is 29138407. The reversal of 29138404 is 40483192.

The square root of 29138404 is 5398.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29138407) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 9447 + ... + 12145.

Almost surely, 2^29138404 is an apocalyptic number.

29138404 is the 5398-th square number.

It is an amenable number.

29138404 is a deficient number, since it is larger than the sum of its proper divisors (21872703).

29138404 is an frugal number, since it uses more digits than its factorization.

29138404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5402 (or 2701 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The cubic root of 29138404 is about 307.7196667788.

The spelling of 29138404 in words is "twenty-nine million, one hundred thirty-eight thousand, four hundred four".