2196259740 has 72 divisors (see below), whose sum is σ = 6676815600. Its totient is φ = 584365824.

The previous prime is 2196259721. The next prime is 2196259783. The reversal of 2196259740 is 479526912.

2196259740 is a `hidden beast` number, since 2 + 19 + 6 + 2 + 597 + 40 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68911 + ... + 95609.

It is an arithmetic number, because the mean of its divisors is an integer number (92733550).

Almost surely, 2^2196259740 is an apocalyptic number.

2196259740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2196259740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3338407800).

2196259740 is an abundant number, since it is smaller than the sum of its proper divisors (4480555860).

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

2196259740 is a wasteful number, since it uses less digits than its factorization.

2196259740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27171 (or 27166 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 2196259740 is about 46864.2693317628. The cubic root of 2196259740 is about 1299.8539757087.

The spelling of 2196259740 in words is "two billion, one hundred ninety-six million, two hundred fifty-nine thousand, seven hundred forty".