40332404 has 12 divisors (see below), whose sum is σ = 80664864. Its totient is φ = 17285304.

The previous prime is 40332377. The next prime is 40332419. The reversal of 40332404 is 40423304.

It is a happy number.

40332404 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 720194 + ... + 720249.

It is an arithmetic number, because the mean of its divisors is an integer number (6722072).

Almost surely, 2^40332404 is an apocalyptic number.

It is an amenable number.

40332404 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.

40332404 is a wasteful number, since it uses less digits than its factorization.

40332404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440454 (or 1440452 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 40332404 is about 6350.7797946394. The cubic root of 40332404 is about 342.9399152999.

Adding to 40332404 its reverse (40423304), we get a palindrome (80755708).

The spelling of 40332404 in words is "forty million, three hundred thirty-two thousand, four hundred four".