2205742 has 16 divisors (see below), whose sum is σ = 4125312. Its totient is φ = 859320.

The previous prime is 2205719. The next prime is 2205761. The reversal of 2205742 is 2475022.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 7008 + ... + 7315.

It is an arithmetic number, because the mean of its divisors is an integer number (257832).

2^2205742 is an apocalyptic number.

2205742 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2205742 is a deficient number, since it is larger than the sum of its proper divisors (1919570).

2205742 is a wasteful number, since it uses less digits than its factorization.

2205742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14343.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 2205742 is about 1485.1740638726. The cubic root of 2205742 is about 130.1721978417.

The spelling of 2205742 in words is "two million, two hundred five thousand, seven hundred forty-two".