4000040370 has 24 divisors (see below), whose sum is σ = 10400105196. Its totient is φ = 1066677408.

The previous prime is 4000040353. The next prime is 4000040371. The reversal of 4000040370 is 730400004.

It can be written as a sum of positive squares in 2 ways, for example, as 3336102081 + 663938289 = 57759^2 + 25767^2 .

It is a super-3 number, since 3×4000040370³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (4000040371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22222357 + ... + 22222536.

Almost surely, 2^4000040370 is an apocalyptic number.

4000040370 is an abundant number, since it is smaller than the sum of its proper divisors (6400064826).

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

4000040370 is a wasteful number, since it uses less digits than its factorization.

4000040370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44444906 (or 44444903 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 4000040370 is about 63245.8723554352. The cubic root of 4000040370 is about 1587.4063922319.

Adding to 4000040370 its reverse (730400004), we get a palindrome (4730440374).

The spelling of 4000040370 in words is "four billion, forty thousand, three hundred seventy".