40009202 has 8 divisors (see below), whose sum is σ = 60632796. Its totient is φ = 19798272.

The previous prime is 40009201. The next prime is 40009253. The reversal of 40009202 is 20290004.

It can be written as a sum of positive squares in 2 ways, for example, as 36590401 + 3418801 = 6049^2 + 1849^2 .

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

It is not an unprimeable number, because it can be changed into a prime (40009201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102923 + ... + 103310.

Almost surely, 2^40009202 is an apocalyptic number.

40009202 is a deficient number, since it is larger than the sum of its proper divisors (20623594).

40009202 is a wasteful number, since it uses less digits than its factorization.

40009202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206332.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 40009202 is about 6325.2827604780. The cubic root of 40009202 is about 342.0214126557.

Adding to 40009202 its reverse (20290004), we get a palindrome (60299206).

The spelling of 40009202 in words is "forty million, nine thousand, two hundred two".