2179872402 has 8 divisors (see below), whose sum is σ = 4359744816. Its totient is φ = 726624132.

The previous prime is 2179872341. The next prime is 2179872419. The reversal of 2179872402 is 2042789712.

It is a sphenic number, since it is the product of 3 distinct primes.

2179872402 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181656028 + ... + 181656039.

It is an arithmetic number, because the mean of its divisors is an integer number (544968102).

Almost surely, 2^2179872402 is an apocalyptic number.

2179872402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2179872402 is a wasteful number, since it uses less digits than its factorization.

2179872402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363312072.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 2179872402 is about 46689.1036752688. The cubic root of 2179872402 is about 1296.6129585527.

The spelling of 2179872402 in words is "two billion, one hundred seventy-nine million, eight hundred seventy-two thousand, four hundred two".