40020585 has 32 divisors (see below), whose sum is σ = 71055360. Its totient is φ = 19070400.

The previous prime is 40020527. The next prime is 40020599. The reversal of 40020585 is 58502004.

It is not a de Polignac number, because 40020585 - 2⁶ = 40020521 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7680 + ... + 11790.

It is an arithmetic number, because the mean of its divisors is an integer number (2220480).

Almost surely, 2^40020585 is an apocalyptic number.

It is an amenable number.

40020585 is a deficient number, since it is larger than the sum of its proper divisors (31034775).

40020585 is a wasteful number, since it uses less digits than its factorization.

40020585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4189.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 40020585 is about 6326.1824981580. The cubic root of 40020585 is about 342.0538456992.

Adding to 40020585 its reverse (58502004), we get a palindrome (98522589).

The spelling of 40020585 in words is "forty million, twenty thousand, five hundred eighty-five".