40304404 has 12 divisors (see below), whose sum is σ = 80608864. Its totient is φ = 17273304.

The previous prime is 40304401. The next prime is 40304413. The reversal of 40304404 is 40440304.

40304404 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40304401) 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, 719694 + ... + 719749.

Almost surely, 2^40304404 is an apocalyptic number.

It is an amenable number.

40304404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40304404 is a wasteful number, since it uses less digits than its factorization.

40304404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439454 (or 1439452 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 40304404 is about 6348.5749582091. The cubic root of 40304404 is about 342.8605371026.

Adding to 40304404 its reverse (40440304), we get a palindrome (80744708).

The spelling of 40304404 in words is "forty million, three hundred four thousand, four hundred four".