2291738 has 8 divisors (see below), whose sum is σ = 3486240. Its totient is φ = 1129660.

The previous prime is 2291717. The next prime is 2291747. The reversal of 2291738 is 8371922.

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

It is an Ulam number.

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, 7928 + ... + 8211.

It is an arithmetic number, because the mean of its divisors is an integer number (435780).

2^2291738 is an apocalyptic number.

2291738 is a deficient number, since it is larger than the sum of its proper divisors (1194502).

2291738 is a wasteful number, since it uses less digits than its factorization.

2291738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16212.

The product of its digits is 6048, while the sum is 32.

The square root of 2291738 is about 1513.8487374900. The cubic root of 2291738 is about 131.8423661605.

The spelling of 2291738 in words is "two million, two hundred ninety-one thousand, seven hundred thirty-eight".