205745982 has 16 divisors (see below), whose sum is σ = 443145360. Its totient is φ = 63306432.

The previous prime is 205745963. The next prime is 205745983. The reversal of 205745982 is 289547502.

205745982 is digitally balanced in base 3, 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 (205745983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1318807 + ... + 1318962.

It is an arithmetic number, because the mean of its divisors is an integer number (27696585).

Almost surely, 2^205745982 is an apocalyptic number.

205745982 is an abundant number, since it is smaller than the sum of its proper divisors (237399378).

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

205745982 is a wasteful number, since it uses less digits than its factorization.

205745982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2637787.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 205745982 is about 14343.8482284218. The cubic root of 205745982 is about 590.3512052435.

The spelling of 205745982 in words is "two hundred five million, seven hundred forty-five thousand, nine hundred eighty-two".