1004331438 has 48 divisors (see below), whose sum is σ = 2424404736. Its totient is φ = 297864720.

The previous prime is 1004331437. The next prime is 1004331443. The reversal of 1004331438 is 8341334001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004331437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44656 + ... + 63267.

It is an arithmetic number, because the mean of its divisors is an integer number (50508432).

Almost surely, 2^1004331438 is an apocalyptic number.

1004331438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1004331438 is an abundant number, since it is smaller than the sum of its proper divisors (1420073298).

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

1004331438 is a wasteful number, since it uses less digits than its factorization.

1004331438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107989 (or 107986 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 1004331438 is about 31691.1886492129. The cubic root of 1004331438 is about 1001.4417330735.

Adding to 1004331438 its reverse (8341334001), we get a palindrome (9345665439).

The spelling of 1004331438 in words is "one billion, four million, three hundred thirty-one thousand, four hundred thirty-eight".