400120214 has 32 divisors (see below), whose sum is σ = 661457664. Its totient is φ = 180385920.

The previous prime is 400120207. The next prime is 400120223. The reversal of 400120214 is 412021004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403259 + ... + 404249.

It is an arithmetic number, because the mean of its divisors is an integer number (20670552).

Almost surely, 2^400120214 is an apocalyptic number.

400120214 is a deficient number, since it is larger than the sum of its proper divisors (261337450).

400120214 is a wasteful number, since it uses less digits than its factorization.

400120214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 400120214 is about 20003.0051242307. The cubic root of 400120214 is about 736.8801043620.

Adding to 400120214 its reverse (412021004), we get a palindrome (812141218).

The spelling of 400120214 in words is "four hundred million, one hundred twenty thousand, two hundred fourteen".