400321230 has 16 divisors (see below), whose sum is σ = 960771024. Its totient is φ = 106752320.

The previous prime is 400321213. The next prime is 400321303. The reversal of 400321230 is 32123004.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6671991 + ... + 6672050.

It is an arithmetic number, because the mean of its divisors is an integer number (60048189).

Almost surely, 2^400321230 is an apocalyptic number.

400321230 is an abundant number, since it is smaller than the sum of its proper divisors (560449794).

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

400321230 is a wasteful number, since it uses less digits than its factorization.

400321230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13344051.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 400321230 is about 20008.0291383234. The cubic root of 400321230 is about 737.0034838593.

Adding to 400321230 its reverse (32123004), we get a palindrome (432444234).

The spelling of 400321230 in words is "four hundred million, three hundred twenty-one thousand, two hundred thirty".