1004402052 has 48 divisors (see below), whose sum is σ = 2608562880. Its totient is φ = 334214784.

The previous prime is 1004402039. The next prime is 1004402081. The reversal of 1004402052 is 2502044001.

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

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 56203 + ... + 71885.

It is an arithmetic number, because the mean of its divisors is an integer number (54345060).

Almost surely, 2^1004402052 is an apocalyptic number.

1004402052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1004402052 is an abundant number, since it is smaller than the sum of its proper divisors (1604160828).

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

1004402052 is a wasteful number, since it uses less digits than its factorization.

1004402052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16289 (or 16281 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 1004402052 is about 31692.3027247942. The cubic root of 1004402052 is about 1001.4652027989.

Adding to 1004402052 its reverse (2502044001), we get a palindrome (3506446053).

The spelling of 1004402052 in words is "one billion, four million, four hundred two thousand, fifty-two".