2290855 has 32 divisors (see below), whose sum is σ = 3392640. Its totient is φ = 1451520.

The previous prime is 2290843. The next prime is 2290861. The reversal of 2290855 is 5580922.

It is a happy number.

It is not a de Polignac number, because 2290855 - 2⁷ = 2290727 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 2¹⁴ + 9⁵ + 0 + 8⁶ + 5² + 5⁹ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37525 + ... + 37585.

It is an arithmetic number, because the mean of its divisors is an integer number (106020).

2^2290855 is an apocalyptic number.

2290855 is a deficient number, since it is larger than the sum of its proper divisors (1101785).

2290855 is a wasteful number, since it uses less digits than its factorization.

2290855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 2290855 is about 1513.5570686301. The cubic root of 2290855 is about 131.8254311583.

The spelling of 2290855 in words is "two million, two hundred ninety thousand, eight hundred fifty-five".