2290554 has 60 divisors (see below), whose sum is σ = 5898906. Its totient is φ = 642096.

The previous prime is 2290543. The next prime is 2290571. The reversal of 2290554 is 4550922.

2290554 is a `hidden beast` number, since 22 + 90 + 554 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1750329 + 540225 = 1323^2 + 735^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 43192 + ... + 43244.

2^2290554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2290554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2949453).

2290554 is an abundant number, since it is smaller than the sum of its proper divisors (3608352).

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

2290554 is an equidigital number, since it uses as much as digits as its factorization.

2290554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 2290554 is about 1513.4576307251. The cubic root of 2290554 is about 131.8196573034.

The spelling of 2290554 in words is "two million, two hundred ninety thousand, five hundred fifty-four".