1044003402 has 24 divisors (see below), whose sum is σ = 2436008484. Its totient is φ = 321231744.

The previous prime is 1044003397. The next prime is 1044003403. The reversal of 1044003402 is 2043004401.

It can be written as a sum of positive squares in 2 ways, for example, as 1004953401 + 39050001 = 31701^2 + 6249^2 .

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

1044003402 is a modest number, since divided by 3402 gives 1044 as remainder.

It is not an unprimeable number, because it can be changed into a prime (1044003403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2230543 + ... + 2231010.

Almost surely, 2^1044003402 is an apocalyptic number.

1044003402 is an abundant number, since it is smaller than the sum of its proper divisors (1392005082).

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

1044003402 is a wasteful number, since it uses less digits than its factorization.

1044003402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4461574 (or 4461571 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1044003402 is about 32311.0414873925. The cubic root of 1044003402 is about 1014.4577663056.

Adding to 1044003402 its reverse (2043004401), we get a palindrome (3087007803).

Subtracting 1044003402 from its reverse (2043004401), we obtain a palindrome (999000999).

The spelling of 1044003402 in words is "one billion, forty-four million, three thousand, four hundred two".