2239218946 has 8 divisors (see below), whose sum is σ = 3371315580. Its totient is φ = 1115447088.

The previous prime is 2239218911. The next prime is 2239218953. The reversal of 2239218946 is 6498129322.

It can be written as a sum of positive squares in 2 ways, for example, as 2198578321 + 40640625 = 46889^2 + 6375^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2239218896 and 2239218905.

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, 2080521 + ... + 2081596.

Almost surely, 2^2239218946 is an apocalyptic number.

2239218946 is a deficient number, since it is larger than the sum of its proper divisors (1132096634).

2239218946 is a wasteful number, since it uses less digits than its factorization.

2239218946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4162388.

The product of its digits is 373248, while the sum is 46.

The square root of 2239218946 is about 47320.3861564971. The cubic root of 2239218946 is about 1308.2744302402.

The spelling of 2239218946 in words is "two billion, two hundred thirty-nine million, two hundred eighteen thousand, nine hundred forty-six".