29490505 has 8 divisors (see below), whose sum is σ = 38605824. Its totient is φ = 21447600.

The previous prime is 29490497. The next prime is 29490509. The reversal of 29490505 is 50509492.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 29490505 - 2³ = 29490497 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29490509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268041 + ... + 268150.

It is an arithmetic number, because the mean of its divisors is an integer number (4825728).

Almost surely, 2^29490505 is an apocalyptic number.

It is an amenable number.

29490505 is a deficient number, since it is larger than the sum of its proper divisors (9115319).

29490505 is a wasteful number, since it uses less digits than its factorization.

29490505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536207.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 29490505 is about 5430.5160896548. The cubic root of 29490505 is about 308.9541760614.

Adding to 29490505 its reverse (50509492), we get a palindrome (79999997).

The spelling of 29490505 in words is "twenty-nine million, four hundred ninety thousand, five hundred five".