2225400 has 48 divisors (see below), whose sum is σ = 6900600. Its totient is φ = 593280.

The previous prime is 2225393. The next prime is 2225401. The reversal of 2225400 is 45222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2225400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2225401) 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, 1255 + ... + 2454.

2^2225400 is an apocalyptic number.

2225400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2225400 is an abundant number, since it is smaller than the sum of its proper divisors (4675200).

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

2225400 is a wasteful number, since it uses less digits than its factorization.

2225400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3728 (or 3719 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 2225400 is about 1491.7774632967. Note that the first 3 decimals coincide. The cubic root of 2225400 is about 130.5577613094.

The spelling of 2225400 in words is "two million, two hundred twenty-five thousand, four hundred".