400222010 has 32 divisors (see below), whose sum is σ = 726993792. Its totient is φ = 158632000.

The previous prime is 400222001. The next prime is 400222019. The reversal of 400222010 is 10222004.

It is an interprime number because it is at equal distance from previous prime (400222001) and next prime (400222019).

It is a junction number, because it is equal to n+sod(n) for n = 400221982 and 400222000.

It is not an unprimeable number, because it can be changed into a prime (400222019) 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 15 ways as a sum of consecutive naturals, for example, 795419 + ... + 795921.

It is an arithmetic number, because the mean of its divisors is an integer number (22718556).

Almost surely, 2^400222010 is an apocalyptic number.

400222010 is a deficient number, since it is larger than the sum of its proper divisors (326771782).

400222010 is a wasteful number, since it uses less digits than its factorization.

400222010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078.

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

The square root of 400222010 is about 20005.5494800818. The cubic root of 400222010 is about 736.9425898219.

Adding to 400222010 its reverse (10222004), we get a palindrome (410444014).

The spelling of 400222010 in words is "four hundred million, two hundred twenty-two thousand, ten".