2746405 has 4 divisors (see below), whose sum is σ = 3295692. Its totient is φ = 2197120.

The previous prime is 2746379. The next prime is 2746409. The reversal of 2746405 is 5046472.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2070721 + 675684 = 1439^2 + 822^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2746405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2746409) 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, 274636 + ... + 274645.

It is an arithmetic number, because the mean of its divisors is an integer number (823923).

2^2746405 is an apocalyptic number.

It is an amenable number.

2746405 is a deficient number, since it is larger than the sum of its proper divisors (549287).

2746405 is an equidigital number, since it uses as much as digits as its factorization.

2746405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549286.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 2746405 is about 1657.2281074131. The cubic root of 2746405 is about 140.0408894169.

The spelling of 2746405 in words is "two million, seven hundred forty-six thousand, four hundred five".