40238400229 has 2 divisors, whose sum is σ = 40238400230. Its totient is φ = 40238400228.

The previous prime is 40238400217. The next prime is 40238400233. The reversal of 40238400229 is 92200483204.

40238400229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27693952225 + 12544448004 = 166415^2 + 112002^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40238400229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40238400194 and 40238400203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40238400259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20119200114 + 20119200115.

It is an arithmetic number, because the mean of its divisors is an integer number (20119200115).

Almost surely, 2^40238400229 is an apocalyptic number.

It is an amenable number.

40238400229 is a deficient number, since it is larger than the sum of its proper divisors (1).

40238400229 is an equidigital number, since it uses as much as digits as its factorization.

40238400229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 34.

The spelling of 40238400229 in words is "forty billion, two hundred thirty-eight million, four hundred thousand, two hundred twenty-nine".