73290 has 32 divisors (see below), whose sum is σ = 201600. Its totient is φ = 16704.

The previous prime is 73277. The next prime is 73291. The reversal of 73290 is 9237.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36 + ... + 384.

It is an arithmetic number, because the mean of its divisors is an integer number (6300).

2⁷³²⁹⁰ is an apocalyptic number.

73290 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 73290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100800).

73290 is an abundant number, since it is smaller than the sum of its proper divisors (128310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73290 is a wasteful number, since it uses less digits than its factorization.

73290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366.

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 73290 is about 270.7212588623. The cubic root of 73290 is about 41.8486616879.

It can be divided in two parts, 73 and 290, that added together give a palindrome (363).

The spelling of 73290 in words is "seventy-three thousand, two hundred ninety".