2247620 has 24 divisors (see below), whose sum is σ = 4836888. Its totient is φ = 876800.

The previous prime is 2247611. The next prime is 2247659. The reversal of 2247620 is 267422.

It can be written as a sum of positive squares in 4 ways, for example, as 9604 + 2238016 = 98^2 + 1496^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 551 + ... + 2190.

It is an arithmetic number, because the mean of its divisors is an integer number (201537).

2^2247620 is an apocalyptic number.

2247620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2247620 is an abundant number, since it is smaller than the sum of its proper divisors (2589268).

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

2247620 is a wasteful number, since it uses less digits than its factorization.

2247620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2791 (or 2789 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 2247620 is about 1499.2064567630. The cubic root of 2247620 is about 130.9908507100.

The spelling of 2247620 in words is "two million, two hundred forty-seven thousand, six hundred twenty".