40543776 has 324 divisors, whose sum is σ = 153773802. Its totient is φ = 10063872.

The previous prime is 40543747. The next prime is 40543799. The reversal of 40543776 is 67734504.

40543776 is a `hidden beast` number, since 40 + 543 + 7 + 76 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 26255376 + 14288400 = 5124^2 + 3780^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 40543776.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 2384920 + ... + 2384936.

Almost surely, 2^40543776 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 40543776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76886901).

40543776 is an abundant number, since it is smaller than the sum of its proper divisors (113230026).

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

40543776 is a wasteful number, since it uses less digits than its factorization.

40543776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 40543776 is about 6367.3994691711. The cubic root of 40543776 is about 343.5379591035.

The spelling of 40543776 in words is "forty million, five hundred forty-three thousand, seven hundred seventy-six".