40245299 has 4 divisors (see below), whose sum is σ = 40905120. Its totient is φ = 39585480.

The previous prime is 40245281. The next prime is 40245311. The reversal of 40245299 is 99254204.

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-40245299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40245229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329819 + ... + 329940.

It is an arithmetic number, because the mean of its divisors is an integer number (10226280).

Almost surely, 2^40245299 is an apocalyptic number.

40245299 is a deficient number, since it is larger than the sum of its proper divisors (659821).

40245299 is an equidigital number, since it uses as much as digits as its factorization.

40245299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659820.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 40245299 is about 6343.9182687043. The cubic root of 40245299 is about 342.6928574451.

The spelling of 40245299 in words is "forty million, two hundred forty-five thousand, two hundred ninety-nine".