2270890 has 8 divisors (see below), whose sum is σ = 4087620. Its totient is φ = 908352.

The previous prime is 2270839. The next prime is 2270893. The reversal of 2270890 is 980722.

It can be written as a sum of positive squares in 2 ways, for example, as 2259009 + 11881 = 1503^2 + 109^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2270893) 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, 113535 + ... + 113554.

2^2270890 is an apocalyptic number.

2270890 is a deficient number, since it is larger than the sum of its proper divisors (1816730).

2270890 is a wasteful number, since it uses less digits than its factorization.

2270890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227096.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 2270890 is about 1506.9472452611. The cubic root of 2270890 is about 131.4413565517.

It can be divided in two parts, 2270 and 890, that added together give a triangular number (3160 = T₇₉).

The spelling of 2270890 in words is "two million, two hundred seventy thousand, eight hundred ninety".