205489702 has 12 divisors (see below), whose sum is σ = 338803668. Its totient is φ = 93404300.

The previous prime is 205489681. The next prime is 205489703. The reversal of 205489702 is 207984502.

205489702 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205489703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 424324 + ... + 424807.

It is an arithmetic number, because the mean of its divisors is an integer number (28233639).

Almost surely, 2^205489702 is an apocalyptic number.

205489702 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

205489702 is a deficient number, since it is larger than the sum of its proper divisors (133313966).

205489702 is a wasteful number, since it uses less digits than its factorization.

205489702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849155 (or 849144 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 205489702 is about 14334.9119983347. The cubic root of 205489702 is about 590.1059868965.

The spelling of 205489702 in words is "two hundred five million, four hundred eighty-nine thousand, seven hundred two".