400040330 has 16 divisors (see below), whose sum is σ = 720300384. Its totient is φ = 159965520.

The previous prime is 400040327. The next prime is 400040363. The reversal of 400040330 is 33040004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58385 + ... + 64875.

It is an arithmetic number, because the mean of its divisors is an integer number (45018774).

Almost surely, 2^400040330 is an apocalyptic number.

400040330 is a deficient number, since it is larger than the sum of its proper divisors (320260054).

400040330 is a wasteful number, since it uses less digits than its factorization.

400040330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12661.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 400040330 is about 20001.0082245871. The cubic root of 400040330 is about 736.8310617276.

Adding to 400040330 its reverse (33040004), we get a palindrome (433080334).

The spelling of 400040330 in words is "four hundred million, forty thousand, three hundred thirty".