40942003 has 2 divisors, whose sum is σ = 40942004. Its totient is φ = 40942002.

The previous prime is 40941973. The next prime is 40942021. The reversal of 40942003 is 30024904.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40942003 is a prime.

It is not a weakly prime, because it can be changed into another prime (40942073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20471001 + 20471002.

It is an arithmetic number, because the mean of its divisors is an integer number (20471002).

Almost surely, 2^40942003 is an apocalyptic number.

40942003 is a deficient number, since it is larger than the sum of its proper divisors (1).

40942003 is an equidigital number, since it uses as much as digits as its factorization.

40942003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 40942003 is about 6398.5938298973. The cubic root of 40942003 is about 344.6590568618.

Adding to 40942003 its reverse (30024904), we get a palindrome (70966907).

The spelling of 40942003 in words is "forty million, nine hundred forty-two thousand, three".