40775745 has 8 divisors (see below), whose sum is σ = 65241216. Its totient is φ = 21747056.

The previous prime is 40775737. The next prime is 40775747. The reversal of 40775745 is 54757704.

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

It is a cyclic number.

It is not a de Polignac number, because 40775745 - 2³ = 40775737 is a prime.

It is a super-2 number, since 2×40775745² = 3325322760610050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40775747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1359177 + ... + 1359206.

It is an arithmetic number, because the mean of its divisors is an integer number (8155152).

Almost surely, 2^40775745 is an apocalyptic number.

It is an amenable number.

40775745 is a deficient number, since it is larger than the sum of its proper divisors (24465471).

40775745 is a wasteful number, since it uses less digits than its factorization.

40775745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2718391.

The product of its (nonzero) digits is 137200, while the sum is 39.

The square root of 40775745 is about 6385.5888530346. The cubic root of 40775745 is about 344.1918914286.

The spelling of 40775745 in words is "forty million, seven hundred seventy-five thousand, seven hundred forty-five".