1004120402 has 32 divisors (see below), whose sum is σ = 1628977392. Its totient is φ = 462495744.

The previous prime is 1004120363. The next prime is 1004120443. The reversal of 1004120402 is 2040214001.

It can be written as a sum of positive squares in 8 ways, for example, as 859134721 + 144985681 = 29311^2 + 12041^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 338558 + ... + 341510.

Almost surely, 2^1004120402 is an apocalyptic number.

1004120402 is a deficient number, since it is larger than the sum of its proper divisors (624856990).

1004120402 is a wasteful number, since it uses less digits than its factorization.

1004120402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3182.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1004120402 is about 31687.8589052653. The cubic root of 1004120402 is about 1001.3715852272.

Adding to 1004120402 its reverse (2040214001), we get a palindrome (3044334403).

The spelling of 1004120402 in words is "one billion, four million, one hundred twenty thousand, four hundred two".