2726431 has 4 divisors (see below), whose sum is σ = 2767192. Its totient is φ = 2685672.

The previous prime is 2726411. The next prime is 2726441. The reversal of 2726431 is 1346272.

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 2726431 - 2⁷ = 2726303 is a prime.

It is a super-2 number, since 2×2726431² = 14866851995522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2726396 and 2726405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2726401) 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, 20280 + ... + 20413.

It is an arithmetic number, because the mean of its divisors is an integer number (691798).

2^2726431 is an apocalyptic number.

2726431 is a deficient number, since it is larger than the sum of its proper divisors (40761).

2726431 is an equidigital number, since it uses as much as digits as its factorization.

2726431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40760.

The product of its digits is 2016, while the sum is 25.

The square root of 2726431 is about 1651.1907824355. The cubic root of 2726431 is about 139.7005675123.

The spelling of 2726431 in words is "two million, seven hundred twenty-six thousand, four hundred thirty-one".