40723344 has 80 divisors (see below), whose sum is σ = 118117440. Its totient is φ = 13432320.

The previous prime is 40723321. The next prime is 40723433. The reversal of 40723344 is 44332704.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 45784 + ... + 46664.

It is an arithmetic number, because the mean of its divisors is an integer number (1476468).

Almost surely, 2^40723344 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 40723344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59058720).

40723344 is an abundant number, since it is smaller than the sum of its proper divisors (77394096).

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

40723344 is a wasteful number, since it uses less digits than its factorization.

40723344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005 (or 993 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 27.

The square root of 40723344 is about 6381.4844667992. The cubic root of 40723344 is about 344.0443876380.

The spelling of 40723344 in words is "forty million, seven hundred twenty-three thousand, three hundred forty-four".