400314399 has 4 divisors (see below), whose sum is σ = 533752536. Its totient is φ = 266876264.

The previous prime is 400314389. The next prime is 400314403. The reversal of 400314399 is 993413004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 400314399 - 2⁵ = 400314367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400314319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66719064 + ... + 66719069.

It is an arithmetic number, because the mean of its divisors is an integer number (133438134).

Almost surely, 2^400314399 is an apocalyptic number.

400314399 is a deficient number, since it is larger than the sum of its proper divisors (133438137).

400314399 is a wasteful number, since it uses less digits than its factorization.

400314399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133438136.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 400314399 is about 20007.8584311265. The cubic root of 400314399 is about 736.9992918097. Note that the first 3 decimals are identical.

The spelling of 400314399 in words is "four hundred million, three hundred fourteen thousand, three hundred ninety-nine".