40509575 has 12 divisors (see below), whose sum is σ = 50545128. Its totient is φ = 32205600.

The previous prime is 40509563. The next prime is 40509583. The reversal of 40509575 is 57590504.

It is not a de Polignac number, because 40509575 - 2⁴ = 40509559 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 11 ways as a sum of consecutive naturals, for example, 896 + ... + 9045.

It is an arithmetic number, because the mean of its divisors is an integer number (4212094).

Almost surely, 2^40509575 is an apocalyptic number.

40509575 is a deficient number, since it is larger than the sum of its proper divisors (10035553).

40509575 is a wasteful number, since it uses less digits than its factorization.

40509575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10114 (or 10109 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 40509575 is about 6364.7132692683. The cubic root of 40509575 is about 343.4413339394.

The spelling of 40509575 in words is "forty million, five hundred nine thousand, five hundred seventy-five".