400307914 has 8 divisors (see below), whose sum is σ = 600920388. Its totient is φ = 200001120.

The previous prime is 400307911. The next prime is 400307927. The reversal of 400307914 is 419703004.

It can be written as a sum of positive squares in 2 ways, for example, as 268402689 + 131905225 = 16383^2 + 11485^2 .

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

It is a super-2 number, since 2×400307914² = 320492852022062792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (400307911) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 73117 + ... + 78400.

Almost surely, 2^400307914 is an apocalyptic number.

400307914 is a deficient number, since it is larger than the sum of its proper divisors (200612474).

400307914 is a wasteful number, since it uses less digits than its factorization.

400307914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152840.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 400307914 is about 20007.6963691475. The cubic root of 400307914 is about 736.9953120492.

The spelling of 400307914 in words is "four hundred million, three hundred seven thousand, nine hundred fourteen".