40474429 has 2 divisors, whose sum is σ = 40474430. Its totient is φ = 40474428.

The previous prime is 40474393. The next prime is 40474439. The reversal of 40474429 is 92447404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38415204 + 2059225 = 6198^2 + 1435^2 .

It is a cyclic number.

It is not a de Polignac number, because 40474429 - 2²¹ = 38377277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40474394 and 40474403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40474439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20237214 + 20237215.

It is an arithmetic number, because the mean of its divisors is an integer number (20237215).

Almost surely, 2^40474429 is an apocalyptic number.

It is an amenable number.

40474429 is a deficient number, since it is larger than the sum of its proper divisors (1).

40474429 is an equidigital number, since it uses as much as digits as its factorization.

40474429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 40474429 is about 6361.9516659591. The cubic root of 40474429 is about 343.3419822708.

The spelling of 40474429 in words is "forty million, four hundred seventy-four thousand, four hundred twenty-nine".