40348499 has 4 divisors (see below), whose sum is σ = 40740336. Its totient is φ = 39956664.

The previous prime is 40348489. The next prime is 40348547. The reversal of 40348499 is 99484304.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40348499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40348409) 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, 195764 + ... + 195969.

It is an arithmetic number, because the mean of its divisors is an integer number (10185084).

Almost surely, 2^40348499 is an apocalyptic number.

40348499 is a deficient number, since it is larger than the sum of its proper divisors (391837).

40348499 is a wasteful number, since it uses less digits than its factorization.

40348499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391836.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 40348499 is about 6352.0468354697. The cubic root of 40348499 is about 342.9855269614.

The spelling of 40348499 in words is "forty million, three hundred forty-eight thousand, four hundred ninety-nine".