2245240 has 16 divisors (see below), whose sum is σ = 5051880. Its totient is φ = 898080.

The previous prime is 2245223. The next prime is 2245247. The reversal of 2245240 is 425422.

It is a super-2 number, since 2×2245240² = 10082205315200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2245247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28026 + ... + 28105.

2^2245240 is an apocalyptic number.

2245240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2245240 is an abundant number, since it is smaller than the sum of its proper divisors (2806640).

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

2245240 is a wasteful number, since it uses less digits than its factorization.

2245240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56142 (or 56138 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 2245240 is about 1498.4124932741. The cubic root of 2245240 is about 130.9445990706.

It can be divided in two parts, 2245 and 240, that added together give a triangular number (2485 = T₇₀).

The spelling of 2245240 in words is "two million, two hundred forty-five thousand, two hundred forty".