2200428 has 36 divisors (see below), whose sum is σ = 5856760. Its totient is φ = 694656.

The previous prime is 2200423. The next prime is 2200441. The reversal of 2200428 is 8240022.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a self number, because there is not a number n which added to its sum of digits gives 2200428.

It is not an unprimeable number, because it can be changed into a prime (2200423) 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, 925 + ... + 2292.

2^2200428 is an apocalyptic number.

It is an amenable number.

2200428 is an abundant number, since it is smaller than the sum of its proper divisors (3656332).

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

2200428 is a wasteful number, since it uses less digits than its factorization.

2200428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3246 (or 3241 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2200428 is about 1483.3839691732. The cubic root of 2200428 is about 130.0675782767.

It can be divided in two parts, 2200 and 428, that added together give a triangular number (2628 = T₇₂).

The spelling of 2200428 in words is "two million, two hundred thousand, four hundred twenty-eight".