400000230 has 72 divisors (see below), whose sum is σ = 1209809952. Its totient is φ = 91427616.

The previous prime is 400000193. The next prime is 400000261. The reversal of 400000230 is 32000004.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 40942 + ... + 49761.

It is an arithmetic number, because the mean of its divisors is an integer number (16802916).

Almost surely, 2^400000230 is an apocalyptic number.

400000230 is an abundant number, since it is smaller than the sum of its proper divisors (809809722).

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

400000230 is a wasteful number, since it uses less digits than its factorization.

400000230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90730 (or 90720 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 400000230 is about 20000.0057499992. The cubic root of 400000230 is about 736.8064409493.

Adding to 400000230 its reverse (32000004), we get a palindrome (432000234).

The spelling of 400000230 in words is "four hundred million, two hundred thirty", and thus it is an aban number.