400014207 has 12 divisors (see below), whose sum is σ = 599198600. Its totient is φ = 266675976.

The previous prime is 400014169. The next prime is 400014211. The reversal of 400014207 is 702410004.

It is a happy number.

It is not a de Polignac number, because 400014207 - 2⁸ = 400013951 is a prime.

It is a super-2 number, since 2×400014207² = 320022731603677698, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 400014207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400014217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 822832 + ... + 823317.

Almost surely, 2^400014207 is an apocalyptic number.

400014207 is a deficient number, since it is larger than the sum of its proper divisors (199184393).

400014207 is an equidigital number, since it uses as much as digits as its factorization.

400014207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646164 (or 1646152 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 400014207 is about 20000.3551718463. The cubic root of 400014207 is about 736.8150227974.

The spelling of 400014207 in words is "four hundred million, fourteen thousand, two hundred seven".