40306396 has 48 divisors (see below), whose sum is σ = 80607744. Its totient is φ = 17493696.

The previous prime is 40306379. The next prime is 40306423. The reversal of 40306396 is 69360304.

40306396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79881 + ... + 80383.

It is an arithmetic number, because the mean of its divisors is an integer number (1679328).

Almost surely, 2^40306396 is an apocalyptic number.

40306396 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

40306396 is a deficient number, since it is larger than the sum of its proper divisors (40301348).

40306396 is a wasteful number, since it uses less digits than its factorization.

40306396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610 (or 608 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 40306396 is about 6348.7318418720. The cubic root of 40306396 is about 342.8661855089.

The spelling of 40306396 in words is "forty million, three hundred six thousand, three hundred ninety-six".