40299249 has 8 divisors (see below), whose sum is σ = 53762752. Its totient is φ = 26850960.

The previous prime is 40299221. The next prime is 40299251. The reversal of 40299249 is 94299204.

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

It is not a de Polignac number, because 40299249 - 2⁷ = 40299121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40299949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5967 + ... + 10779.

It is an arithmetic number, because the mean of its divisors is an integer number (6720344).

Almost surely, 2^40299249 is an apocalyptic number.

It is an amenable number.

40299249 is a deficient number, since it is larger than the sum of its proper divisors (13463503).

40299249 is a wasteful number, since it uses less digits than its factorization.

40299249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7607.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 40299249 is about 6348.1689486024. The cubic root of 40299249 is about 342.8459190026.

The spelling of 40299249 in words is "forty million, two hundred ninety-nine thousand, two hundred forty-nine".