400230345 has 32 divisors (see below), whose sum is σ = 678988800. Its totient is φ = 200746944.

The previous prime is 400230343. The next prime is 400230349. The reversal of 400230345 is 543032004.

It is a happy number.

It is not a de Polignac number, because 400230345 - 2¹ = 400230343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400230343) 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 31 ways as a sum of consecutive naturals, for example, 34564 + ... + 44666.

It is an arithmetic number, because the mean of its divisors is an integer number (21218400).

Almost surely, 2^400230345 is an apocalyptic number.

It is an amenable number.

400230345 is a deficient number, since it is larger than the sum of its proper divisors (278758455).

400230345 is a wasteful number, since it uses less digits than its factorization.

400230345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10269.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 400230345 is about 20005.7577961946. The cubic root of 400230345 is about 736.9477056274.

Adding to 400230345 its reverse (543032004), we get a palindrome (943262349).

The spelling of 400230345 in words is "four hundred million, two hundred thirty thousand, three hundred forty-five".