40445200 has 30 divisors (see below), whose sum is σ = 97170554. Its totient is φ = 16177920.

The previous prime is 40445189. The next prime is 40445203. The reversal of 40445200 is 254404.

It can be written as a sum of positive squares in 3 ways, for example, as 300304 + 40144896 = 548^2 + 6336^2 .

It is not an unprimeable number, because it can be changed into a prime (40445203) 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, 50157 + ... + 50956.

Almost surely, 2^40445200 is an apocalyptic number.

40445200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40445200 is an abundant number, since it is smaller than the sum of its proper divisors (56725354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40445200 is a wasteful number, since it uses less digits than its factorization.

40445200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101131 (or 101120 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 40445200 is about 6359.6540786430. The cubic root of 40445200 is about 343.2593131241.

Adding to 40445200 its reverse (254404), we get a palindrome (40699604).

The spelling of 40445200 in words is "forty million, four hundred forty-five thousand, two hundred".