400400214 has 8 divisors (see below), whose sum is σ = 800800440. Its totient is φ = 133466736.

The previous prime is 400400131. The next prime is 400400237. The reversal of 400400214 is 412004004.

It is a sphenic number, since it is the product of 3 distinct primes.

400400214 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 400400193 and 400400202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33366679 + ... + 33366690.

It is an arithmetic number, because the mean of its divisors is an integer number (100100055).

Almost surely, 2^400400214 is an apocalyptic number.

400400214 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

400400214 is a wasteful number, since it uses less digits than its factorization.

400400214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66733374.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 400400214 is about 20010.0028485755. The cubic root of 400400214 is about 737.0519513156.

Adding to 400400214 its reverse (412004004), we get a palindrome (812404218).

The spelling of 400400214 in words is "four hundred million, four hundred thousand, two hundred fourteen".