40726429 has 4 divisors (see below), whose sum is σ = 40739776. Its totient is φ = 40713084.

The previous prime is 40726423. The next prime is 40726451. The reversal of 40726429 is 92462704.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 40726429 - 2³ = 40726421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40726394 and 40726403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40726421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412 + ... + 9034.

It is an arithmetic number, because the mean of its divisors is an integer number (10184944).

Almost surely, 2^40726429 is an apocalyptic number.

It is an amenable number.

40726429 is a deficient number, since it is larger than the sum of its proper divisors (13347).

40726429 is an equidigital number, since it uses as much as digits as its factorization.

40726429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13346.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 40726429 is about 6381.7261771405. The cubic root of 40726429 is about 344.0530751215.

It can be divided in two parts, 4072 and 6429, that added together give a palindrome (10501).

The spelling of 40726429 in words is "forty million, seven hundred twenty-six thousand, four hundred twenty-nine".