400712002 has 16 divisors (see below), whose sum is σ = 605011680. Its totient is φ = 199045792.

The previous prime is 400711973. The next prime is 400712009. The reversal of 400712002 is 200217004.

It is not an unprimeable number, because it can be changed into a prime (400712009) by changing a digit.

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, 317649 + ... + 318907.

It is an arithmetic number, because the mean of its divisors is an integer number (37813230).

Almost surely, 2^400712002 is an apocalyptic number.

400712002 is a deficient number, since it is larger than the sum of its proper divisors (204299678).

400712002 is a wasteful number, since it uses less digits than its factorization.

400712002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 400712002 is about 20017.7921359974. The cubic root of 400712002 is about 737.2432135601.

Adding to 400712002 its reverse (200217004), we get a palindrome (600929006).

The spelling of 400712002 in words is "four hundred million, seven hundred twelve thousand, two".