40944240 has 240 divisors, whose sum is σ = 150302880. Its totient is φ = 9953280.

The previous prime is 40944227. The next prime is 40944247. The reversal of 40944240 is 4244904.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40944247) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 560844 + ... + 560916.

It is an arithmetic number, because the mean of its divisors is an integer number (626262).

Almost surely, 2^40944240 is an apocalyptic number.

40944240 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 40944240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75151440).

40944240 is an abundant number, since it is smaller than the sum of its proper divisors (109358640).

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

40944240 is a wasteful number, since it uses less digits than its factorization.

40944240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 40944240 is about 6398.7686315415. The cubic root of 40944240 is about 344.6653339384.

The spelling of 40944240 in words is "forty million, nine hundred forty-four thousand, two hundred forty".