40571648 has 72 divisors (see below), whose sum is σ = 88938528. Its totient is φ = 18358272.

The previous prime is 40571621. The next prime is 40571677. The reversal of 40571648 is 84617504.

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, 242861 + ... + 243027.

Almost surely, 2^40571648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40571648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44469264).

40571648 is an abundant number, since it is smaller than the sum of its proper divisors (48366880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40571648 is a wasteful number, since it uses less digits than its factorization.

40571648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 40571648 is about 6369.5877417616. The cubic root of 40571648 is about 343.6166633062.

The spelling of 40571648 in words is "forty million, five hundred seventy-one thousand, six hundred forty-eight".