40711645 has 8 divisors (see below), whose sum is σ = 52612056. Its totient is φ = 30063936.

The previous prime is 40711639. The next prime is 40711663. The reversal of 40711645 is 54611704.

It can be written as a sum of positive squares in 4 ways, for example, as 32761 + 40678884 = 181^2 + 6378^2 .

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 40711645 - 2³ = 40711637 is a prime.

It is a Duffinian number.

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, 313102 + ... + 313231.

It is an arithmetic number, because the mean of its divisors is an integer number (6576507).

Almost surely, 2^40711645 is an apocalyptic number.

It is an amenable number.

40711645 is a deficient number, since it is larger than the sum of its proper divisors (11900411).

40711645 is a wasteful number, since it uses less digits than its factorization.

40711645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626351.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 40711645 is about 6380.5677647056. The cubic root of 40711645 is about 344.0114387985.

The spelling of 40711645 in words is "forty million, seven hundred eleven thousand, six hundred forty-five".