40493056 has 28 divisors (see below), whose sum is σ = 80997552. Its totient is φ = 20242432.

The previous prime is 40493051. The next prime is 40493069. The reversal of 40493056 is 65039404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40493051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5721 + ... + 10663.

Almost surely, 2^40493056 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 40493056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40498776).

40493056 is an abundant number, since it is smaller than the sum of its proper divisors (40504496).

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

40493056 is an frugal number, since it uses more digits than its factorization.

40493056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4969 (or 4945 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 40493056 is about 6363.4154351260. The cubic root of 40493056 is about 343.3946447412.

The spelling of 40493056 in words is "forty million, four hundred ninety-three thousand, fifty-six".