1004400430 has 96 divisors (see below), whose sum is σ = 2053592352. Its totient is φ = 353295360.

The previous prime is 1004400421. The next prime is 1004400433. The reversal of 1004400430 is 340044001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004400433) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7331322 + ... + 7331458.

It is an arithmetic number, because the mean of its divisors is an integer number (21391587).

Almost surely, 2^1004400430 is an apocalyptic number.

1004400430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1004400430 is an abundant number, since it is smaller than the sum of its proper divisors (1049191922).

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

1004400430 is a wasteful number, since it uses less digits than its factorization.

1004400430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1004400430 is about 31692.2771349741. The cubic root of 1004400430 is about 1001.4646637129.

Adding to 1004400430 its reverse (340044001), we get a palindrome (1344444431).

The spelling of 1004400430 in words is "one billion, four million, four hundred thousand, four hundred thirty".