40340299 has 4 divisors (see below), whose sum is σ = 40377160. Its totient is φ = 40303440.

The previous prime is 40340297. The next prime is 40340317. The reversal of 40340299 is 99204304.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40340299 - 2¹ = 40340297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40340299.

It is not an unprimeable number, because it can be changed into a prime (40340291) 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, 16737 + ... + 18994.

It is an arithmetic number, because the mean of its divisors is an integer number (10094290).

Almost surely, 2^40340299 is an apocalyptic number.

40340299 is a deficient number, since it is larger than the sum of its proper divisors (36861).

40340299 is a wasteful number, since it uses less digits than its factorization.

40340299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36860.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 40340299 is about 6351.4013414364. The cubic root of 40340299 is about 342.9622904765.

The spelling of 40340299 in words is "forty million, three hundred forty thousand, two hundred ninety-nine".