2198478902 has 16 divisors (see below), whose sum is σ = 3364535232. Its totient is φ = 1077024000.

The previous prime is 2198478881. The next prime is 2198478929. The reversal of 2198478902 is 2098748912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65798 + ... + 93414.

It is an arithmetic number, because the mean of its divisors is an integer number (210283452).

Almost surely, 2^2198478902 is an apocalyptic number.

2198478902 is a deficient number, since it is larger than the sum of its proper divisors (1166056330).

2198478902 is a wasteful number, since it uses less digits than its factorization.

2198478902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28423.

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 2198478902 is about 46887.9398353137. The cubic root of 2198478902 is about 1300.2916312199.

The spelling of 2198478902 in words is "two billion, one hundred ninety-eight million, four hundred seventy-eight thousand, nine hundred two".