40669250 has 16 divisors (see below), whose sum is σ = 76133304. Its totient is φ = 16267600.

The previous prime is 40669243. The next prime is 40669259. The reversal of 40669250 is 5296604.

It can be written as a sum of positive squares in 4 ways, for example, as 12271009 + 28398241 = 3503^2 + 5329^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40669259) 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, 81089 + ... + 81588.

Almost surely, 2^40669250 is an apocalyptic number.

40669250 is a deficient number, since it is larger than the sum of its proper divisors (35464054).

40669250 is a wasteful number, since it uses less digits than its factorization.

40669250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162694 (or 162684 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 40669250 is about 6377.2447028478. The cubic root of 40669250 is about 343.8919854222.

The spelling of 40669250 in words is "forty million, six hundred sixty-nine thousand, two hundred fifty".