40944385 has 16 divisors (see below), whose sum is σ = 51644736. Its totient is φ = 31123008.

The previous prime is 40944383. The next prime is 40944403. The reversal of 40944385 is 58344904.

It is a cyclic number.

It is not a de Polignac number, because 40944385 - 2¹ = 40944383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40944383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5382 + ... + 10528.

It is an arithmetic number, because the mean of its divisors is an integer number (3227796).

Almost surely, 2^40944385 is an apocalyptic number.

It is an amenable number.

40944385 is a deficient number, since it is larger than the sum of its proper divisors (10700351).

40944385 is a wasteful number, since it uses less digits than its factorization.

40944385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5232.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 40944385 is about 6398.7799618365. The cubic root of 40944385 is about 344.6657408041.

The spelling of 40944385 in words is "forty million, nine hundred forty-four thousand, three hundred eighty-five".