40204244 has 6 divisors (see below), whose sum is σ = 70357434. Its totient is φ = 20102120.

The previous prime is 40204243. The next prime is 40204259. The reversal of 40204244 is 44240204.

It can be written as a sum of positive squares in only one way, i.e., 24108100 + 16096144 = 4910^2 + 4012^2 .

It is a super-2 number, since 2×40204244² = 3232762471223072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40204243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5025527 + ... + 5025534.

It is an arithmetic number, because the mean of its divisors is an integer number (11726239).

Almost surely, 2^40204244 is an apocalyptic number.

It is an amenable number.

40204244 is a deficient number, since it is larger than the sum of its proper divisors (30153190).

40204244 is a wasteful number, since it uses less digits than its factorization.

40204244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10051065 (or 10051063 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 40204244 is about 6340.6816668242. The cubic root of 40204244 is about 342.5762886165.

Adding to 40204244 its reverse (44240204), we get a palindrome (84444448).

The spelling of 40204244 in words is "forty million, two hundred four thousand, two hundred forty-four".