40306304 has 32 divisors (see below), whose sum is σ = 83795040. Its totient is φ = 19275520.

The previous prime is 40306297. The next prime is 40306339. The reversal of 40306304 is 40360304.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

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, 3902 + ... + 9789.

It is an arithmetic number, because the mean of its divisors is an integer number (2618595).

Almost surely, 2^40306304 is an apocalyptic number.

It is an amenable number.

40306304 is an abundant number, since it is smaller than the sum of its proper divisors (43488736).

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

40306304 is a wasteful number, since it uses less digits than its factorization.

40306304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13728 (or 13716 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 40306304 is about 6348.7245963264. The cubic root of 40306304 is about 342.8659246428.

Adding to 40306304 its reverse (40360304), we get a palindrome (80666608).

The spelling of 40306304 in words is "forty million, three hundred six thousand, three hundred four".