2209750965 has 24 divisors (see below), whose sum is σ = 3923658648. Its totient is φ = 1149788160.

The previous prime is 2209750957. The next prime is 2209750981. The reversal of 2209750965 is 5690579022.

It can be written as a sum of positive squares in 4 ways, for example, as 938961 + 2208812004 = 969^2 + 46998^2 .

It is not a de Polignac number, because 2209750965 - 2³ = 2209750957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2209750965.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 597004 + ... + 600693.

It is an arithmetic number, because the mean of its divisors is an integer number (163485777).

Almost surely, 2^2209750965 is an apocalyptic number.

It is an amenable number.

2209750965 is a deficient number, since it is larger than the sum of its proper divisors (1713907683).

2209750965 is a wasteful number, since it uses less digits than its factorization.

2209750965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197749 (or 1197746 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 2209750965 is about 47007.9883104989. The cubic root of 2209750965 is about 1302.5101333694.

The spelling of 2209750965 in words is "two billion, two hundred nine million, seven hundred fifty thousand, nine hundred sixty-five".