40550 has 12 divisors (see below), whose sum is σ = 75516. Its totient is φ = 16200.

The previous prime is 40543. The next prime is 40559. The reversal of 40550 is 5504.

40550 = T₄₄ + T₄₅ + ... + T₆₈.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40559) by changing a digit.

40550 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 356 + ... + 455.

It is an arithmetic number, because the mean of its divisors is an integer number (6293).

2⁴⁰⁵⁵⁰ is an apocalyptic number.

40550 is a deficient number, since it is larger than the sum of its proper divisors (34966).

40550 is a wasteful number, since it uses less digits than its factorization.

40550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823 (or 818 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 14.

The square root of 40550 is about 201.3703056560. The cubic root of 40550 is about 34.3555537394.

The spelling of 40550 in words is "forty thousand, five hundred fifty".