40450 has 12 divisors (see below), whose sum is σ = 75330. Its totient is φ = 16160.

The previous prime is 40433. The next prime is 40459. The reversal of 40450 is 5404.

It can be written as a sum of positive squares in 3 ways, for example, as 36481 + 3969 = 191^2 + 63^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40450.

It is not an unprimeable number, because it can be changed into a prime (40459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 355 + ... + 454.

2⁴⁰⁴⁵⁰ is an apocalyptic number.

40450 is a deficient number, since it is larger than the sum of its proper divisors (34880).

40450 is a wasteful number, since it uses less digits than its factorization.

40450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821 (or 816 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 40450 is about 201.1218536112. The cubic root of 40450 is about 34.3272891823.

Adding to 40450 its reverse (5404), we get a palindrome (45854).

It can be divided in two parts, 404 and 50, that added together give a palindrome (454).

The spelling of 40450 in words is "forty thousand, four hundred fifty".