2205740 has 24 divisors (see below), whose sum is σ = 4793040. Its totient is φ = 851648.

The previous prime is 2205719. The next prime is 2205761. The reversal of 2205740 is 475022.

It is an interprime number because it is at equal distance from previous prime (2205719) and next prime (2205761).

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 1322 + ... + 2481.

It is an arithmetic number, because the mean of its divisors is an integer number (199710).

2^2205740 is an apocalyptic number.

2205740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2205740 is an abundant number, since it is smaller than the sum of its proper divisors (2587300).

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

2205740 is a wasteful number, since it uses less digits than its factorization.

2205740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3841 (or 3839 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 2205740 is about 1485.1733905507. The cubic root of 2205740 is about 130.1721584983.

The spelling of 2205740 in words is "two million, two hundred five thousand, seven hundred forty".