2234921 has 4 divisors (see below), whose sum is σ = 2406852. Its totient is φ = 2062992.

The previous prime is 2234899. The next prime is 2234923. The reversal of 2234921 is 1294322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1294322 = 2 ⋅647161.

It can be written as a sum of positive squares in 2 ways, for example, as 583696 + 1651225 = 764^2 + 1285^2 .

It is a cyclic number.

It is not a de Polignac number, because 2234921 - 2¹⁸ = 1972777 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 2¹⁷ + 3 + 4 + 9⁴ + 2²¹ + 1 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2234923) 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, 85946 + ... + 85971.

It is an arithmetic number, because the mean of its divisors is an integer number (601713).

2^2234921 is an apocalyptic number.

It is an amenable number.

2234921 is a deficient number, since it is larger than the sum of its proper divisors (171931).

2234921 is a wasteful number, since it uses less digits than its factorization.

2234921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171930.

The product of its digits is 864, while the sum is 23.

The square root of 2234921 is about 1494.9652169867. The cubic root of 2234921 is about 130.7436862268.

It can be divided in two parts, 22 and 34921, that added together give a palindrome (34943).

The spelling of 2234921 in words is "two million, two hundred thirty-four thousand, nine hundred twenty-one".