40863744 has 96 divisors (see below), whose sum is σ = 121212000. Its totient is φ = 13602816.

The previous prime is 40863743. The next prime is 40863749. The reversal of 40863744 is 44736804.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a junction number, because it is equal to n+sod(n) for n = 40863699 and 40863708.

It is not an unprimeable number, because it can be changed into a prime (40863743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54927 + ... + 55665.

It is an arithmetic number, because the mean of its divisors is an integer number (1262625).

Almost surely, 2^40863744 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 40863744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60606000).

40863744 is an abundant number, since it is smaller than the sum of its proper divisors (80348256).

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

40863744 is an equidigital number, since it uses as much as digits as its factorization.

40863744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770 (or 744 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 40863744 is about 6392.4755768012. The cubic root of 40863744 is about 344.4393161298.

The spelling of 40863744 in words is "forty million, eight hundred sixty-three thousand, seven hundred forty-four".