2245620 has 48 divisors (see below), whose sum is σ = 6773760. Its totient is φ = 552576.

The previous prime is 2245619. The next prime is 2245627. The reversal of 2245620 is 265422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2245627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 660 + ... + 2219.

It is an arithmetic number, because the mean of its divisors is an integer number (141120).

2^2245620 is an apocalyptic number.

2245620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2245620 is an abundant number, since it is smaller than the sum of its proper divisors (4528140).

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

2245620 is a wasteful number, since it uses less digits than its factorization.

2245620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904 (or 2902 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 2245620 is about 1498.5392887742. The cubic root of 2245620 is about 130.9519859781.

The spelling of 2245620 in words is "two million, two hundred forty-five thousand, six hundred twenty".