2130404 has 6 divisors (see below), whose sum is σ = 3728214. Its totient is φ = 1065200.

The previous prime is 2130391. The next prime is 2130437. The reversal of 2130404 is 4040312.

It can be written as a sum of positive squares in only one way, i.e., 1827904 + 302500 = 1352^2 + 550^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266297 + ... + 266304.

It is an arithmetic number, because the mean of its divisors is an integer number (621369).

2^2130404 is an apocalyptic number.

It is an amenable number.

2130404 is a deficient number, since it is larger than the sum of its proper divisors (1597810).

2130404 is a wasteful number, since it uses less digits than its factorization.

2130404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532605 (or 532603 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2130404 is about 1459.5903534896. The cubic root of 2130404 is about 128.6729692863.

Adding to 2130404 its reverse (4040312), we get a palindrome (6170716).

The spelling of 2130404 in words is "two million, one hundred thirty thousand, four hundred four".