1040003004 has 48 divisors (see below), whose sum is σ = 2523100160. Its totient is φ = 333054720.

The previous prime is 1040002979. The next prime is 1040003009. The reversal of 1040003004 is 4003000401.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040003009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41652 + ... + 61764.

Almost surely, 2^1040003004 is an apocalyptic number.

It is an amenable number.

1040003004 is an abundant number, since it is smaller than the sum of its proper divisors (1483097156).

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

1040003004 is a wasteful number, since it uses less digits than its factorization.

1040003004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20290 (or 20288 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1040003004 is about 32249.0775682034. The cubic root of 1040003004 is about 1013.1603793099.

Adding to 1040003004 its reverse (4003000401), we get a palindrome (5043003405).

The spelling of 1040003004 in words is "one billion, forty million, three thousand, four".