2240931 has 32 divisors (see below), whose sum is σ = 3801600. Its totient is φ = 1140480.

The previous prime is 2240891. The next prime is 2240941. The reversal of 2240931 is 1390422.

It is not a de Polignac number, because 2240931 - 2²¹ = 143779 is a prime.

It is a super-2 number, since 2×2240931² = 10043543493522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 2240898 and 2240907.

It is not an unprimeable number, because it can be changed into a prime (2240941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20505 + ... + 20613.

It is an arithmetic number, because the mean of its divisors is an integer number (118800).

2^2240931 is an apocalyptic number.

2240931 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2240931 is a deficient number, since it is larger than the sum of its proper divisors (1560669).

2240931 is a wasteful number, since it uses less digits than its factorization.

2240931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2240931 is about 1496.9739476691. The cubic root of 2240931 is about 130.8607770559.

Multiplying 2240931 by its sum of digits (21), we get a triangular number (47059551 = T₉₇₀₁).

The spelling of 2240931 in words is "two million, two hundred forty thousand, nine hundred thirty-one".