2263731 has 4 divisors (see below), whose sum is σ = 3018312. Its totient is φ = 1509152.

The previous prime is 2263721. The next prime is 2263739. The reversal of 2263731 is 1373622.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2263731 - 2⁵ = 2263699 is a prime.

It is a super-2 number, since 2×2263731² = 10248956080722, which contains 22 as substring.

It is a D-number.

2263731 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2263739) 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, 377286 + ... + 377291.

It is an arithmetic number, because the mean of its divisors is an integer number (754578).

2^2263731 is an apocalyptic number.

2263731 is a deficient number, since it is larger than the sum of its proper divisors (754581).

2263731 is an equidigital number, since it uses as much as digits as its factorization.

2263731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754580.

The product of its digits is 1512, while the sum is 24.

The square root of 2263731 is about 1504.5700382501. The cubic root of 2263731 is about 131.3030878213.

The spelling of 2263731 in words is "two million, two hundred sixty-three thousand, seven hundred thirty-one".