29442505 has 4 divisors (see below), whose sum is σ = 35331012. Its totient is φ = 23554000.

The previous prime is 29442503. The next prime is 29442509. The reversal of 29442505 is 50524492.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23011209 + 6431296 = 4797^2 + 2536^2 .

It is not a de Polignac number, because 29442505 - 2¹ = 29442503 is a prime.

It is a super-2 number, since 2×29442505² = 1733722201350050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29442503) 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, 2944246 + ... + 2944255.

It is an arithmetic number, because the mean of its divisors is an integer number (8832753).

Almost surely, 2^29442505 is an apocalyptic number.

It is an amenable number.

29442505 is a deficient number, since it is larger than the sum of its proper divisors (5888507).

29442505 is an equidigital number, since it uses as much as digits as its factorization.

29442505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5888506.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 29442505 is about 5426.0948204026. The cubic root of 29442505 is about 308.7864627177.

Adding to 29442505 its reverse (50524492), we get a palindrome (79966997).

It can be divided in two parts, 2944 and 2505, that multiplied together give a triangular number (7374720 = T₃₈₄₀).

The spelling of 29442505 in words is "twenty-nine million, four hundred forty-two thousand, five hundred five".