45290 has 16 divisors (see below), whose sum is σ = 93312. Its totient is φ = 15504.

The previous prime is 45289. The next prime is 45293. The reversal of 45290 is 9254.

45290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (45293) 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, 254 + ... + 393.

It is an arithmetic number, because the mean of its divisors is an integer number (5832).

2⁴⁵²⁹⁰ is an apocalyptic number.

45290 is an abundant number, since it is smaller than the sum of its proper divisors (48022).

It is a weird number, because it is abundant, but not a pseudoperfect number.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46656).

45290 is a wasteful number, since it uses less digits than its factorization.

45290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 45290 is about 212.8144731920. The cubic root of 45290 is about 35.6451768334.

The spelling of 45290 in words is "forty-five thousand, two hundred ninety".