40344404 has 6 divisors (see below), whose sum is σ = 70602714. Its totient is φ = 20172200.

The previous prime is 40344371. The next prime is 40344407. The reversal of 40344404 is 40444304.

It can be written as a sum of positive squares in only one way, i.e., 40322500 + 21904 = 6350^2 + 148^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40344404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40344407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5043047 + ... + 5043054.

It is an arithmetic number, because the mean of its divisors is an integer number (11767119).

Almost surely, 2^40344404 is an apocalyptic number.

It is an amenable number.

40344404 is a deficient number, since it is larger than the sum of its proper divisors (30258310).

40344404 is a wasteful number, since it uses less digits than its factorization.

40344404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10086105 (or 10086103 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 40344404 is about 6351.7244902467. The cubic root of 40344404 is about 342.9739232811.

Adding to 40344404 its reverse (40444304), we get a palindrome (80788708).

The spelling of 40344404 in words is "forty million, three hundred forty-four thousand, four hundred four".