400240010 has 16 divisors (see below), whose sum is σ = 762810696. Its totient is φ = 150678528.

The previous prime is 400240003. The next prime is 400240019. The reversal of 400240010 is 10042004.

It can be written as a sum of positive squares in 4 ways, for example, as 343101529 + 57138481 = 18523^2 + 7559^2 .

It is a junction number, because it is equal to n+sod(n) for n = 400239973 and 400240000.

It is not an unprimeable number, because it can be changed into a prime (400240019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1177007 + ... + 1177346.

Almost surely, 2^400240010 is an apocalyptic number.

400240010 is a deficient number, since it is larger than the sum of its proper divisors (362570686).

400240010 is a wasteful number, since it uses less digits than its factorization.

400240010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354377.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 400240010 is about 20005.9993501949. Note that the first 3 decimals coincide. The cubic root of 400240010 is about 736.9536376632.

Adding to 400240010 its reverse (10042004), we get a palindrome (410282014).

The spelling of 400240010 in words is "four hundred million, two hundred forty thousand, ten".