206222742 has 24 divisors (see below), whose sum is σ = 487436040. Its totient is φ = 62491680.

The previous prime is 206222657. The next prime is 206222773. The reversal of 206222742 is 247222602.

206222742 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 an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 520567 + ... + 520962.

It is an arithmetic number, because the mean of its divisors is an integer number (20309835).

Almost surely, 2^206222742 is an apocalyptic number.

206222742 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

206222742 is an abundant number, since it is smaller than the sum of its proper divisors (281213298).

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

206222742 is a wasteful number, since it uses less digits than its factorization.

206222742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041548 (or 1041545 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 206222742 is about 14360.4575832388. The cubic root of 206222742 is about 590.8068459294.

The spelling of 206222742 in words is "two hundred six million, two hundred twenty-two thousand, seven hundred forty-two".