40648056 has 64 divisors (see below), whose sum is σ = 105386400. Its totient is φ = 13056000.

The previous prime is 40648051. The next prime is 40648063. The reversal of 40648056 is 65084604.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40648051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99180 + ... + 99588.

Almost surely, 2^40648056 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 40648056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52693200).

40648056 is an abundant number, since it is smaller than the sum of its proper divisors (64738344).

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

40648056 is a wasteful number, since it uses less digits than its factorization.

40648056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 40648056 is about 6375.5827968900. The cubic root of 40648056 is about 343.8322374703.

The spelling of 40648056 in words is "forty million, six hundred forty-eight thousand, fifty-six".