40204344 has 16 divisors (see below), whose sum is σ = 100510920. Its totient is φ = 13401440.

The previous prime is 40204331. The next prime is 40204349. The reversal of 40204344 is 44340204.

It is a self number, because there is not a number n which added to its sum of digits gives 40204344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40204349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837567 + ... + 837614.

Almost surely, 2^40204344 is an apocalyptic number.

It is an amenable number.

40204344 is an abundant number, since it is smaller than the sum of its proper divisors (60306576).

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

40204344 is a wasteful number, since it uses less digits than its factorization.

40204344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675190 (or 1675186 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 40204344 is about 6340.6895524067. The cubic root of 40204344 is about 342.5765726462.

Adding to 40204344 its reverse (44340204), we get a palindrome (84544548).

The spelling of 40204344 in words is "forty million, two hundred four thousand, three hundred forty-four".