2196531738 has 24 divisors (see below), whose sum is σ = 4803634368. Its totient is φ = 725333832.

The previous prime is 2196531713. The next prime is 2196531749. The reversal of 2196531738 is 8371356912.

2196531738 is a `hidden beast` number, since 21 + 96 + 531 + 7 + 3 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2196531693 and 2196531702.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 568306 + ... + 572157.

It is an arithmetic number, because the mean of its divisors is an integer number (200151432).

Almost surely, 2^2196531738 is an apocalyptic number.

2196531738 is an abundant number, since it is smaller than the sum of its proper divisors (2607102630).

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

2196531738 is a wasteful number, since it uses less digits than its factorization.

2196531738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140578 (or 1140575 counting only the distinct ones).

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

The square root of 2196531738 is about 46867.1712182419. The cubic root of 2196531738 is about 1299.9076340687.

The spelling of 2196531738 in words is "two billion, one hundred ninety-six million, five hundred thirty-one thousand, seven hundred thirty-eight".