40313444 has 6 divisors (see below), whose sum is σ = 70548534. Its totient is φ = 20156720.

The previous prime is 40313437. The next prime is 40313501. The reversal of 40313444 is 44431304.

It can be written as a sum of positive squares in only one way, i.e., 31787044 + 8526400 = 5638^2 + 2920^2 .

It is a super-2 number, since 2×40313444² = 3250347534282272, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 5039177 + ... + 5039184.

It is an arithmetic number, because the mean of its divisors is an integer number (11758089).

Almost surely, 2^40313444 is an apocalyptic number.

It is an amenable number.

40313444 is a deficient number, since it is larger than the sum of its proper divisors (30235090).

40313444 is a wasteful number, since it uses less digits than its factorization.

40313444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10078365 (or 10078363 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 40313444 is about 6349.2868890923. The cubic root of 40313444 is about 342.8861689381.

Adding to 40313444 its reverse (44431304), we get a palindrome (84744748).

The spelling of 40313444 in words is "forty million, three hundred thirteen thousand, four hundred forty-four".