40298009 has 8 divisors (see below), whose sum is σ = 41321280. Its totient is φ = 39278736.

The previous prime is 40297997. The next prime is 40298033. The reversal of 40298009 is 90089204.

40298009 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 40298009 - 2¹⁶ = 40232473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40298059) 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, 35519 + ... + 36635.

It is an arithmetic number, because the mean of its divisors is an integer number (5165160).

Almost surely, 2^40298009 is an apocalyptic number.

It is an amenable number.

40298009 is a deficient number, since it is larger than the sum of its proper divisors (1023271).

40298009 is a wasteful number, since it uses less digits than its factorization.

40298009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 40298009 is about 6348.0712818934. The cubic root of 40298009 is about 342.8424025326.

The spelling of 40298009 in words is "forty million, two hundred ninety-eight thousand, nine".