2227906 has 4 divisors (see below), whose sum is σ = 3341862. Its totient is φ = 1113952.

The previous prime is 2227889. The next prime is 2227913. The reversal of 2227906 is 6097222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6097222 = 2 ⋅3048611.

It can be written as a sum of positive squares in only one way, i.e., 2128681 + 99225 = 1459^2 + 315^2 .

It is a d-powerful number, because it can be written as 2 + 2³ + 2⁵ + 7⁵ + 9⁶ + 0 + 6⁸ .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556975 + ... + 556978.

2^2227906 is an apocalyptic number.

2227906 is a deficient number, since it is larger than the sum of its proper divisors (1113956).

2227906 is a wasteful number, since it uses less digits than its factorization.

2227906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113955.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 2227906 is about 1492.6171645804. The cubic root of 2227906 is about 130.6067495087.

It can be divided in two parts, 222 and 7906, that added together give a triangular number (8128 = T₁₂₇).

The spelling of 2227906 in words is "two million, two hundred twenty-seven thousand, nine hundred six".