29290 has 16 divisors (see below), whose sum is σ = 55080.
Its totient is φ = 11200.
The previous prime is 29287. The next prime is 29297. The reversal of 29290 is 9292.
It can be written as a sum of positive squares in 4 ways, for example, as 28561 + 729 = 169^2 + 27^2
It is an alternating number because its digits alternate between even and odd.
It is a nialpdrome in base 14.
It is not an unprimeable number, because it can be changed into a prime (29297) 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, 240 + ... + 340.
229290 is an apocalyptic number.
29290 is a deficient number, since it is larger than the sum of its proper divisors (25790).
29290 is a wasteful number, since it uses less digits than its factorization.
29290 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 137.
The product of its (nonzero) digits is 324, while the sum is 22.
The square root of 29290 is about 171.1432148816.
The cubic root of 29290 is about 30.8252393331.
The spelling of 29290 in words is "twenty-nine thousand, two hundred ninety".