40250399 has 4 divisors (see below), whose sum is σ = 46000464. Its totient is φ = 34500336.

The previous prime is 40250389. The next prime is 40250401. The reversal of 40250399 is 99305204.

40250399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40250399 - 2¹² = 40246303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40250359) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2875022 + ... + 2875035.

It is an arithmetic number, because the mean of its divisors is an integer number (11500116).

Almost surely, 2^40250399 is an apocalyptic number.

40250399 is a deficient number, since it is larger than the sum of its proper divisors (5750065).

40250399 is an equidigital number, since it uses as much as digits as its factorization.

40250399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5750064.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 40250399 is about 6344.3202157520. The cubic root of 40250399 is about 342.7073325084.

The spelling of 40250399 in words is "forty million, two hundred fifty thousand, three hundred ninety-nine".