40745 has 8 divisors (see below), whose sum is σ = 50760. Its totient is φ = 31360.

The previous prime is 40739. The next prime is 40751. The reversal of 40745 is 54704.

It is an interprime number because it is at equal distance from previous prime (40739) and next prime (40751).

It can be written as a sum of positive squares in 4 ways, for example, as 6889 + 33856 = 83^2 + 184^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-40745 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5 + ... + 285.

It is an arithmetic number, because the mean of its divisors is an integer number (6345).

2⁴⁰⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

40745 is a deficient number, since it is larger than the sum of its proper divisors (10015).

40745 is a wasteful number, since it uses less digits than its factorization.

40745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 40745 is about 201.8539075668. The cubic root of 40745 is about 34.4105362534.

The spelling of 40745 in words is "forty thousand, seven hundred forty-five".