206963740 has 24 divisors (see below), whose sum is σ = 441992880. Its totient is φ = 81381888.

The previous prime is 206963699. The next prime is 206963741. The reversal of 206963740 is 47369602.

It is a self number, because there is not a number n which added to its sum of digits gives 206963740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206963741) 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, 86517 + ... + 88876.

It is an arithmetic number, because the mean of its divisors is an integer number (18416370).

Almost surely, 2^206963740 is an apocalyptic number.

206963740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206963740 is an abundant number, since it is smaller than the sum of its proper divisors (235029140).

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

206963740 is a wasteful number, since it uses less digits than its factorization.

206963740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175461 (or 175459 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 206963740 is about 14386.2343926408. The cubic root of 206963740 is about 591.5136276364.

The spelling of 206963740 in words is "two hundred six million, nine hundred sixty-three thousand, seven hundred forty".