2196287956 has 12 divisors (see below), whose sum is σ = 3852636340. Its totient is φ = 1095534720.

The previous prime is 2196287923. The next prime is 2196287971. The reversal of 2196287956 is 6597826912.

It can be written as a sum of positive squares in 2 ways, for example, as 53523856 + 2142764100 = 7316^2 + 46290^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2196287897 and 2196287906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 650421 + ... + 653788.

Almost surely, 2^2196287956 is an apocalyptic number.

It is an amenable number.

2196287956 is a deficient number, since it is larger than the sum of its proper divisors (1656348384).

2196287956 is a wasteful number, since it uses less digits than its factorization.

2196287956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304634 (or 1304632 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 55.

The square root of 2196287956 is about 46864.5703703768. The cubic root of 2196287956 is about 1299.8595422213.

The spelling of 2196287956 in words is "two billion, one hundred ninety-six million, two hundred eighty-seven thousand, nine hundred fifty-six".