40251829 has 2 divisors, whose sum is σ = 40251830. Its totient is φ = 40251828.

The previous prime is 40251803. The next prime is 40251839. The reversal of 40251829 is 92815204.

40251829 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., 40030929 + 220900 = 6327^2 + 470^2 .

It is a cyclic number.

It is not a de Polignac number, because 40251829 - 2¹⁷ = 40120757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40251829.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40251839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20125914 + 20125915.

It is an arithmetic number, because the mean of its divisors is an integer number (20125915).

Almost surely, 2^40251829 is an apocalyptic number.

It is an amenable number.

40251829 is a deficient number, since it is larger than the sum of its proper divisors (1).

40251829 is an equidigital number, since it uses as much as digits as its factorization.

40251829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 40251829 is about 6344.4329139806. The cubic root of 40251829 is about 342.7113909831.

The spelling of 40251829 in words is "forty million, two hundred fifty-one thousand, eight hundred twenty-nine".