2240971 has 4 divisors (see below), whose sum is σ = 2262832. Its totient is φ = 2219112.

The previous prime is 2240963. The next prime is 2240977. The reversal of 2240971 is 1790422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1790422 = 2 ⋅895211.

It is a cyclic number.

It is not a de Polignac number, because 2240971 - 2³ = 2240963 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2240977) 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, 10776 + ... + 10981.

It is an arithmetic number, because the mean of its divisors is an integer number (565708).

2^2240971 is an apocalyptic number.

2240971 is a deficient number, since it is larger than the sum of its proper divisors (21861).

2240971 is a wasteful number, since it uses less digits than its factorization.

2240971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21860.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 2240971 is about 1496.9873078954. The cubic root of 2240971 is about 130.8615556608.

The spelling of 2240971 in words is "two million, two hundred forty thousand, nine hundred seventy-one".