2280428 has 6 divisors (see below), whose sum is σ = 3990756. Its totient is φ = 1140212.

The previous prime is 2280413. The next prime is 2280433. The reversal of 2280428 is 8240822.

It is a junction number, because it is equal to n+sod(n) for n = 2280397 and 2280406.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285050 + ... + 285057.

It is an arithmetic number, because the mean of its divisors is an integer number (665126).

2^2280428 is an apocalyptic number.

It is an amenable number.

2280428 is a deficient number, since it is larger than the sum of its proper divisors (1710328).

2280428 is a wasteful number, since it uses less digits than its factorization.

2280428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570111 (or 570109 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 2280428 is about 1510.1086053659. The cubic root of 2280428 is about 131.6251224661.

The spelling of 2280428 in words is "two million, two hundred eighty thousand, four hundred twenty-eight".