1804080902 has 32 divisors (see below), whose sum is σ = 3094060032. Its totient is φ = 781553664.

The previous prime is 1804080871. The next prime is 1804080931. The reversal of 1804080902 is 2090804081.

It is a happy number.

It is a super-2 number, since 2×1804080902² = 6509415801922267208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163958 + ... + 174614.

It is an arithmetic number, because the mean of its divisors is an integer number (96689376).

Almost surely, 2^1804080902 is an apocalyptic number.

1804080902 is a deficient number, since it is larger than the sum of its proper divisors (1289979130).

1804080902 is a wasteful number, since it uses less digits than its factorization.

1804080902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11072.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 1804080902 is about 42474.4735341122. The cubic root of 1804080902 is about 1217.3589967512.

Adding to 1804080902 its reverse (2090804081), we get a palindrome (3894884983).

The spelling of 1804080902 in words is "one billion, eight hundred four million, eighty thousand, nine hundred two".