1740745 has 4 divisors (see below), whose sum is σ = 2088900. Its totient is φ = 1392592.

The previous prime is 1740731. The next prime is 1740763. The reversal of 1740745 is 5470471.

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 1375929 + 364816 = 1173^2 + 604^2 .

It is a cyclic number.

It is not a de Polignac number, because 1740745 - 2¹⁵ = 1707977 is a prime.

1740745 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174070 + ... + 174079.

It is an arithmetic number, because the mean of its divisors is an integer number (522225).

2^1740745 is an apocalyptic number.

It is an amenable number.

1740745 is a deficient number, since it is larger than the sum of its proper divisors (348155).

1740745 is an equidigital number, since it uses as much as digits as its factorization.

1740745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348154.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 1740745 is about 1319.3729571277. The cubic root of 1740745 is about 120.2943007835.

It can be divided in two parts, 1740 and 745, that added together give a triangular number (2485 = T₇₀).

The spelling of 1740745 in words is "one million, seven hundred forty thousand, seven hundred forty-five".