40745705 has 48 divisors (see below), whose sum is σ = 66878784. Its totient is φ = 23425920.

The previous prime is 40745701. The next prime is 40745717. The reversal of 40745705 is 50754704.

It is not a de Polignac number, because 40745705 - 2² = 40745701 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40745701) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34454 + ... + 35616.

It is an arithmetic number, because the mean of its divisors is an integer number (1393308).

Almost surely, 2^40745705 is an apocalyptic number.

It is an amenable number.

40745705 is a deficient number, since it is larger than the sum of its proper divisors (26133079).

40745705 is a wasteful number, since it uses less digits than its factorization.

40745705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206 (or 1199 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 40745705 is about 6383.2362481738. The cubic root of 40745705 is about 344.1073471770.

It can be divided in two parts, 4074 and 5705, that added together give a palindrome (9779).

The spelling of 40745705 in words is "forty million, seven hundred forty-five thousand, seven hundred five".