2273208 has 48 divisors (see below), whose sum is σ = 6614280. Its totient is φ = 649152.

The previous prime is 2273171. The next prime is 2273209. The reversal of 2273208 is 8023722.

It is a super-2 number, since 2×2273208² = 10334949222528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2273209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210 + ... + 2142.

2^2273208 is an apocalyptic number.

2273208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2273208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3307140).

2273208 is an abundant number, since it is smaller than the sum of its proper divisors (4341072).

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

2273208 is a wasteful number, since it uses less digits than its factorization.

2273208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1956 (or 1945 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 2273208 is about 1507.7161536576. The cubic root of 2273208 is about 131.4860640535.

The spelling of 2273208 in words is "two million, two hundred seventy-three thousand, two hundred eight".