1004435340 has 96 divisors (see below), whose sum is σ = 2921834496. Its totient is φ = 257541120.

The previous prime is 1004435321. The next prime is 1004435347. The reversal of 1004435340 is 435344001.

It is a self number, because there is not a number n which added to its sum of digits gives 1004435340.

It is not an unprimeable number, because it can be changed into a prime (1004435347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 301524 + ... + 304836.

It is an arithmetic number, because the mean of its divisors is an integer number (30435776).

Almost surely, 2^1004435340 is an apocalyptic number.

1004435340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1004435340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1460917248).

1004435340 is an abundant number, since it is smaller than the sum of its proper divisors (1917399156).

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

1004435340 is a wasteful number, since it uses less digits than its factorization.

1004435340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3519 (or 3517 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 1004435340 is about 31692.8278952826. The cubic root of 1004435340 is about 1001.4762662322.

Adding to 1004435340 its reverse (435344001), we get a palindrome (1439779341).

The spelling of 1004435340 in words is "one billion, four million, four hundred thirty-five thousand, three hundred forty".