40103929 has 2 divisors, whose sum is σ = 40103930. Its totient is φ = 40103928.

The previous prime is 40103909. The next prime is 40103941. The reversal of 40103929 is 92930104.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38007225 + 2096704 = 6165^2 + 1448^2 .

It is a cyclic number.

It is not a de Polignac number, because 40103929 - 2¹¹ = 40101881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40103897 and 40103906.

It is not a weakly prime, because it can be changed into another prime (40103909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20051964 + 20051965.

It is an arithmetic number, because the mean of its divisors is an integer number (20051965).

Almost surely, 2^40103929 is an apocalyptic number.

It is an amenable number.

40103929 is a deficient number, since it is larger than the sum of its proper divisors (1).

40103929 is an equidigital number, since it uses as much as digits as its factorization.

40103929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 40103929 is about 6332.7662991776. The cubic root of 40103929 is about 342.2911266628.

The spelling of 40103929 in words is "forty million, one hundred three thousand, nine hundred twenty-nine".