2247940 has 12 divisors (see below), whose sum is σ = 4720716. Its totient is φ = 899168.

The previous prime is 2247929. The next prime is 2247941. The reversal of 2247940 is 497422.

It can be written as a sum of positive squares in 2 ways, for example, as 1633284 + 614656 = 1278^2 + 784^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2247899 and 2247908.

It is not an unprimeable number, because it can be changed into a prime (2247941) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 56179 + ... + 56218.

It is an arithmetic number, because the mean of its divisors is an integer number (393393).

2^2247940 is an apocalyptic number.

2247940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2247940 is an abundant number, since it is smaller than the sum of its proper divisors (2472776).

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

2247940 is a wasteful number, since it uses less digits than its factorization.

2247940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112406 (or 112404 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 2247940 is about 1499.3131760910. The cubic root of 2247940 is about 130.9970669273.

The spelling of 2247940 in words is "two million, two hundred forty-seven thousand, nine hundred forty".