40315044 has 144 divisors (see below), whose sum is σ = 125024256. Its totient is φ = 9979200.

The previous prime is 40315027. The next prime is 40315069. The reversal of 40315044 is 44051304.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 40315044.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 148629 + ... + 148899.

It is an arithmetic number, because the mean of its divisors is an integer number (868224).

Almost surely, 2^40315044 is an apocalyptic number.

40315044 is a gapful number since it is divisible by the number (44) 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 40315044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62512128).

40315044 is an abundant number, since it is smaller than the sum of its proper divisors (84709212).

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

40315044 is a wasteful number, since it uses less digits than its factorization.

40315044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 40315044 is about 6349.4128862439. The cubic root of 40315044 is about 342.8907051470.

Adding to 40315044 its reverse (44051304), we get a palindrome (84366348).

The spelling of 40315044 in words is "forty million, three hundred fifteen thousand, forty-four".