2209498956 has 144 divisors (see below), whose sum is σ = 6841196544. Its totient is φ = 587461248.

The previous prime is 2209498931. The next prime is 2209498969. The reversal of 2209498956 is 6598949022.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 209301 + ... + 219603.

Almost surely, 2^2209498956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2209498956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3420598272).

2209498956 is an abundant number, since it is smaller than the sum of its proper divisors (4631697588).

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

2209498956 is a wasteful number, since it uses less digits than its factorization.

2209498956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10380 (or 10375 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The square root of 2209498956 is about 47005.3077428496. The cubic root of 2209498956 is about 1302.4606169669.

The spelling of 2209498956 in words is "two billion, two hundred nine million, four hundred ninety-eight thousand, nine hundred fifty-six".