40004246 has 4 divisors (see below), whose sum is σ = 60006372. Its totient is φ = 20002122.

The previous prime is 40004243. The next prime is 40004267. The reversal of 40004246 is 64240004.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40004243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001060 + ... + 10001063.

It is an arithmetic number, because the mean of its divisors is an integer number (15001593).

Almost surely, 2^40004246 is an apocalyptic number.

40004246 is a deficient number, since it is larger than the sum of its proper divisors (20002126).

40004246 is a wasteful number, since it uses less digits than its factorization.

40004246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20002125.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 40004246 is about 6324.8909872029. The cubic root of 40004246 is about 342.0072898370.

The spelling of 40004246 in words is "forty million, four thousand, two hundred forty-six".