2193781062 has 24 divisors (see below), whose sum is σ = 4822693848. Its totient is φ = 664781920.

The previous prime is 2193781033. The next prime is 2193781091. The reversal of 2193781062 is 2601873912.

It is an interprime number because it is at equal distance from previous prime (2193781033) and next prime (2193781091).

It is a self number, because there is not a number n which added to its sum of digits gives 2193781062.

It is a congruent number.

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, 1510143 + ... + 1511594.

It is an arithmetic number, because the mean of its divisors is an integer number (200945577).

Almost surely, 2^2193781062 is an apocalyptic number.

2193781062 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2193781062 is an abundant number, since it is smaller than the sum of its proper divisors (2628912786).

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

2193781062 is a wasteful number, since it uses less digits than its factorization.

2193781062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3021764 (or 3021753 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 2193781062 is about 46837.8165801951. The cubic root of 2193781062 is about 1299.3647906591.

The spelling of 2193781062 in words is "two billion, one hundred ninety-three million, seven hundred eighty-one thousand, sixty-two".