2273400 has 96 divisors (see below), whose sum is σ = 7849200. Its totient is φ = 604800.

The previous prime is 2273399. The next prime is 2273431. The reversal of 2273400 is 43722.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5190 + ... + 5610.

2^2273400 is an apocalyptic number.

2273400 is a gapful number since it is divisible by the number (20) 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 2273400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3924600).

2273400 is an abundant number, since it is smaller than the sum of its proper divisors (5575800).

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

2273400 is a wasteful number, since it uses less digits than its factorization.

2273400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 2273400 is about 1507.7798247755. The cubic root of 2273400 is about 131.4897658138.

The spelling of 2273400 in words is "two million, two hundred seventy-three thousand, four hundred".