2202840734809 has 81 divisors (see below), whose sum is σ = 2674184319261. Its totient is φ = 1812382640640.

The previous prime is 2202840734777. The next prime is 2202840734813. The reversal of 2202840734809 is 9084370482022.

The square root of 2202840734809 is 1484197.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 402467166409 + 1800373568400 = 634403^2 + 1341780^2 .

It is not a de Polignac number, because 2202840734809 - 2⁵ = 2202840734777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2202840734879) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 20587296534 + ... + 20587296640.

Almost surely, 2^{2202840734809} is an apocalyptic number.

2202840734809 is the 1484197-th square number.

2202840734809 is the 742099-th centered octagonal number.

It is an amenable number.

2202840734809 is a deficient number, since it is larger than the sum of its proper divisors (471343584452).

2202840734809 is an equidigital number, since it uses as much as digits as its factorization.

2202840734809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 49.

Multiplying 2202840734809 by its sum of digits (49), we get a square (107939196005641 = 10389379²).

The spelling of 2202840734809 in words is "two trillion, two hundred two billion, eight hundred forty million, seven hundred thirty-four thousand, eight hundred nine".