29240005 has 8 divisors (see below), whose sum is σ = 35436024. Its totient is φ = 23160000.

The previous prime is 29239981. The next prime is 29240021. The reversal of 29240005 is 50004292.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5678689 + 23561316 = 2383^2 + 4854^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-29240005 is a prime.

It is a Duffinian number.

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, 28446 + ... + 29455.

It is an arithmetic number, because the mean of its divisors is an integer number (4429503).

Almost surely, 2^29240005 is an apocalyptic number.

It is an amenable number.

29240005 is a deficient number, since it is larger than the sum of its proper divisors (6196019).

29240005 is a wasteful number, since it uses less digits than its factorization.

29240005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58007.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 29240005 is about 5407.4027961675. The cubic root of 29240005 is about 308.0769084660.

Adding to 29240005 its reverse (50004292), we get a palindrome (79244297).

The spelling of 29240005 in words is "twenty-nine million, two hundred forty thousand, five".