2195739 has 36 divisors (see below), whose sum is σ = 3983616. Its totient is φ = 1155168.

The previous prime is 2195731. The next prime is 2195749. The reversal of 2195739 is 9375912.

It is not a de Polignac number, because 2195739 - 2³ = 2195731 is a prime.

It is a super-2 number, since 2×2195739² = 9642539512242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2195731) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5542 + ... + 5924.

It is an arithmetic number, because the mean of its divisors is an integer number (110656).

2^2195739 is an apocalyptic number.

2195739 is a deficient number, since it is larger than the sum of its proper divisors (1787877).

2195739 is a wasteful number, since it uses less digits than its factorization.

2195739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 406 counting only the distinct ones).

The product of its digits is 17010, while the sum is 36.

The square root of 2195739 is about 1481.8026184347. The cubic root of 2195739 is about 129.9751234451.

The spelling of 2195739 in words is "two million, one hundred ninety-five thousand, seven hundred thirty-nine".