40394803 has 2 divisors, whose sum is σ = 40394804. Its totient is φ = 40394802.

The previous prime is 40394791. The next prime is 40394813. The reversal of 40394803 is 30849304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40394803 - 2²⁵ = 6840371 is a prime.

It is equal to p_2456293 and since 40394803 and 2456293 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (40394813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20197401 + 20197402.

It is an arithmetic number, because the mean of its divisors is an integer number (20197402).

Almost surely, 2^40394803 is an apocalyptic number.

40394803 is a deficient number, since it is larger than the sum of its proper divisors (1).

40394803 is an equidigital number, since it uses as much as digits as its factorization.

40394803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 40394803 is about 6355.6905997696. The cubic root of 40394803 is about 343.1166803778.

The spelling of 40394803 in words is "forty million, three hundred ninety-four thousand, eight hundred three".