400423002 has 32 divisors (see below), whose sum is σ = 933936000. Its totient is φ = 114405984.

The previous prime is 400422977. The next prime is 400423013. The reversal of 400423002 is 200324004.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 95227 + ... + 99342.

It is an arithmetic number, because the mean of its divisors is an integer number (29185500).

Almost surely, 2^400423002 is an apocalyptic number.

400423002 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

400423002 is an abundant number, since it is smaller than the sum of its proper divisors (533512998).

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

400423002 is a wasteful number, since it uses less digits than its factorization.

400423002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194595 (or 194581 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 400423002 is about 20010.5722556852. The cubic root of 400423002 is about 737.0659336768.

Adding to 400423002 its reverse (200324004), we get a palindrome (600747006).

The spelling of 400423002 in words is "four hundred million, four hundred twenty-three thousand, two".