40306268 has 6 divisors (see below), whose sum is σ = 70535976. Its totient is φ = 20153132.

The previous prime is 40306267. The next prime is 40306289. The reversal of 40306268 is 86260304.

It is a self number, because there is not a number n which added to its sum of digits gives 40306268.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40306261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5038280 + ... + 5038287.

It is an arithmetic number, because the mean of its divisors is an integer number (11755996).

Almost surely, 2^40306268 is an apocalyptic number.

It is an amenable number.

40306268 is a deficient number, since it is larger than the sum of its proper divisors (30229708).

40306268 is a wasteful number, since it uses less digits than its factorization.

40306268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10076571 (or 10076569 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 40306268 is about 6348.7217611107. The cubic root of 40306268 is about 342.8658225647.

The spelling of 40306268 in words is "forty million, three hundred six thousand, two hundred sixty-eight".