2247428 has 24 divisors (see below), whose sum is σ = 4082400. Its totient is φ = 1082048.

The previous prime is 2247409. The next prime is 2247433. The reversal of 2247428 is 8247422.

It is a self number, because there is not a number n which added to its sum of digits gives 2247428.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20951 + ... + 21057.

It is an arithmetic number, because the mean of its divisors is an integer number (170100).

2^2247428 is an apocalyptic number.

It is an amenable number.

2247428 is a deficient number, since it is larger than the sum of its proper divisors (1834972).

2247428 is a wasteful number, since it uses less digits than its factorization.

2247428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 257 counting only the distinct ones).

The product of its digits is 7168, while the sum is 29.

The square root of 2247428 is about 1499.1424215197. The cubic root of 2247428 is about 130.9871206964.

The spelling of 2247428 in words is "two million, two hundred forty-seven thousand, four hundred twenty-eight".