2196140769 has 45 divisors (see below), whose sum is σ = 3389308131. Its totient is φ = 1417137120.

The previous prime is 2196140761. The next prime is 2196140777. The reversal of 2196140769 is 9670416912.

The square root of 2196140769 is 46863.

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

2196140769 is a `hidden beast` number, since 21 + 9 + 614 + 0 + 7 + 6 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (2196140761) and next prime (2196140777).

It can be written as a sum of positive squares in only one way, i.e., 105822369 + 2090318400 = 10287^2 + 45720^2 .

It is not a de Polignac number, because 2196140769 - 2³ = 2196140761 is a prime.

It is a super-2 number, since 2×2196140769² = 9646068554527822722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2196140761) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 17292384 + ... + 17292510.

Almost surely, 2^2196140769 is an apocalyptic number.

2196140769 is the 46863-rd square number.

2196140769 is the 23432-nd centered octagonal number.

It is an amenable number.

2196140769 is a deficient number, since it is larger than the sum of its proper divisors (1193167362).

2196140769 is an frugal number, since it uses more digits than its factorization.

2196140769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The cubic root of 2196140769 is about 1299.8305043319.

The spelling of 2196140769 in words is "two billion, one hundred ninety-six million, one hundred forty thousand, seven hundred sixty-nine".