40563320 has 64 divisors (see below), whose sum is σ = 104863680. Its totient is φ = 13833216.

The previous prime is 40563307. The next prime is 40563331. The reversal of 40563320 is 2336504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88532 + ... + 88988.

It is an arithmetic number, because the mean of its divisors is an integer number (1638495).

Almost surely, 2^40563320 is an apocalyptic number.

40563320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40563320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52431840).

40563320 is an abundant number, since it is smaller than the sum of its proper divisors (64300360).

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

40563320 is a wasteful number, since it uses less digits than its factorization.

40563320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792 (or 788 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 40563320 is about 6368.9339767343. The cubic root of 40563320 is about 343.5931507012.

Adding to 40563320 its reverse (2336504), we get a palindrome (42899824).

The spelling of 40563320 in words is "forty million, five hundred sixty-three thousand, three hundred twenty".