2271898 has 8 divisors (see below), whose sum is σ = 3472308. Its totient is φ = 1114464.

The previous prime is 2271883. The next prime is 2271901. The reversal of 2271898 is 8981722.

It can be written as a sum of positive squares in 2 ways, for example, as 2229049 + 42849 = 1493^2 + 207^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10611 + ... + 10822.

2^2271898 is an apocalyptic number.

2271898 is a deficient number, since it is larger than the sum of its proper divisors (1200410).

2271898 is a wasteful number, since it uses less digits than its factorization.

2271898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21488.

The product of its digits is 16128, while the sum is 37.

The square root of 2271898 is about 1507.2816591467. The cubic root of 2271898 is about 131.4608016868.

The spelling of 2271898 in words is "two million, two hundred seventy-one thousand, eight hundred ninety-eight".