40246403 has 4 divisors (see below), whose sum is σ = 41634240. Its totient is φ = 38858568.

The previous prime is 40246399. The next prime is 40246439. The reversal of 40246403 is 30464204.

It is a happy number.

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 40246403 - 2² = 40246399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40246303) 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, 693875 + ... + 693932.

It is an arithmetic number, because the mean of its divisors is an integer number (10408560).

Almost surely, 2^40246403 is an apocalyptic number.

40246403 is a deficient number, since it is larger than the sum of its proper divisors (1387837).

40246403 is a wasteful number, since it uses less digits than its factorization.

40246403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387836.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 40246403 is about 6344.0052805779. The cubic root of 40246403 is about 342.6959909742.

The spelling of 40246403 in words is "forty million, two hundred forty-six thousand, four hundred three".