2240220431 has 4 divisors (see below), whose sum is σ = 2249145864. Its totient is φ = 2231295000.

The previous prime is 2240220419. The next prime is 2240220497. The reversal of 2240220431 is 1340220422.

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 2240220431 - 2¹⁰ = 2240219407 is a prime.

It is a super-2 number, since 2×2240220431² = 10037175158939651522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240223431) 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, 4462340 + ... + 4462841.

It is an arithmetic number, because the mean of its divisors is an integer number (562286466).

Almost surely, 2^2240220431 is an apocalyptic number.

2240220431 is a deficient number, since it is larger than the sum of its proper divisors (8925433).

2240220431 is an equidigital number, since it uses as much as digits as its factorization.

2240220431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8925432.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2240220431 is about 47330.9669349782. The cubic root of 2240220431 is about 1308.4694419782.

Adding to 2240220431 its reverse (1340220422), we get a palindrome (3580440853).

Subtracting from 2240220431 its reverse (1340220422), we obtain a palindrome (900000009).

The spelling of 2240220431 in words is "two billion, two hundred forty million, two hundred twenty thousand, four hundred thirty-one".