40243600 has 30 divisors (see below), whose sum is σ = 96686210. Its totient is φ = 16097280.

The previous prime is 40243579. The next prime is 40243601. The reversal of 40243600 is 634204.

It can be written as a sum of positive squares in 3 ways, for example, as 3810304 + 36433296 = 1952^2 + 6036^2 .

It is not an unprimeable number, because it can be changed into a prime (40243601) 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, 49905 + ... + 50704.

Almost surely, 2^40243600 is an apocalyptic number.

40243600 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40243600 is an abundant number, since it is smaller than the sum of its proper divisors (56442610).

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

40243600 is a wasteful number, since it uses less digits than its factorization.

40243600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100627 (or 100616 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 40243600 is about 6343.7843595129. The cubic root of 40243600 is about 342.6880349907.

Adding to 40243600 its reverse (634204), we get a palindrome (40877804).

The spelling of 40243600 in words is "forty million, two hundred forty-three thousand, six hundred".