2248731 has 6 divisors (see below), whose sum is σ = 3248180. Its totient is φ = 1499148.

The previous prime is 2248723. The next prime is 2248739. The reversal of 2248731 is 1378422.

It is an interprime number because it is at equal distance from previous prime (2248723) and next prime (2248739).

It is not a de Polignac number, because 2248731 - 2³ = 2248723 is a prime.

It is a super-2 number, since 2×2248731² = 10113582220722, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁷ + 2²¹ + 4⁵ + 8⁵ + 7⁶ + 3² + 1 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2248695 and 2248704.

It is not an unprimeable number, because it can be changed into a prime (2248739) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 124921 + ... + 124938.

2^2248731 is an apocalyptic number.

2248731 is a deficient number, since it is larger than the sum of its proper divisors (999449).

2248731 is a wasteful number, since it uses less digits than its factorization.

2248731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249865 (or 249862 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 2248731 is about 1499.5769403402. The cubic root of 2248731 is about 131.0124301085.

The spelling of 2248731 in words is "two million, two hundred forty-eight thousand, seven hundred thirty-one".