2323290 has 32 divisors (see below), whose sum is σ = 5708736. Its totient is φ = 604800.

The previous prime is 2323273. The next prime is 2323297. The reversal of 2323290 is 923232.

It is an Ulam number.

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 (2323297) 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, 390 + ... + 2190.

It is an arithmetic number, because the mean of its divisors is an integer number (178398).

2^2323290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2323290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2854368).

2323290 is an abundant number, since it is smaller than the sum of its proper divisors (3385446).

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

2323290 is a wasteful number, since it uses less digits than its factorization.

2323290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 2323290 is about 1524.2342339680. The cubic root of 2323290 is about 132.4446665833. Note that the first 3 decimals are identical.

The spelling of 2323290 in words is "two million, three hundred twenty-three thousand, two hundred ninety".