1004431230 has 192 divisors, whose sum is σ = 3099964608. Its totient is φ = 222842880.

The previous prime is 1004431187. The next prime is 1004431231. The reversal of 1004431230 is 321344001.

1004431230 is a `hidden beast` number, since 1 + 0 + 0 + 4 + 431 + 230 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004431231) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 621904 + ... + 623516.

It is an arithmetic number, because the mean of its divisors is an integer number (16145649).

Almost surely, 2^1004431230 is an apocalyptic number.

1004431230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1004431230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1549982304).

1004431230 is an abundant number, since it is smaller than the sum of its proper divisors (2095533378).

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

1004431230 is a wasteful number, since it uses less digits than its factorization.

1004431230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691 (or 1688 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1004431230 is about 31692.7630540475. The cubic root of 1004431230 is about 1001.4749002664.

Adding to 1004431230 its reverse (321344001), we get a palindrome (1325775231).

It can be divided in two parts, 1004 and 431230, that added together give a palindrome (432234).

The spelling of 1004431230 in words is "one billion, four million, four hundred thirty-one thousand, two hundred thirty".