40249829 has 8 divisors (see below), whose sum is σ = 43219008. Its totient is φ = 37347520.

The previous prime is 40249819. The next prime is 40249831. The reversal of 40249829 is 92894204.

40249829 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40249829 - 2¹⁶ = 40184293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40249792 and 40249801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40249819) 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 in 7 ways as a sum of consecutive naturals, for example, 15467 + ... + 17880.

It is an arithmetic number, because the mean of its divisors is an integer number (5402376).

Almost surely, 2^40249829 is an apocalyptic number.

It is an amenable number.

40249829 is a deficient number, since it is larger than the sum of its proper divisors (2969179).

40249829 is a wasteful number, since it uses less digits than its factorization.

40249829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33435.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 40249829 is about 6344.2752935225. The cubic root of 40249829 is about 342.7057147679.

The spelling of 40249829 in words is "forty million, two hundred forty-nine thousand, eight hundred twenty-nine".