243766940 has 12 divisors (see below), whose sum is σ = 511910616. Its totient is φ = 97506768.

The previous prime is 243766891. The next prime is 243766969. The reversal of 243766940 is 49667342.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6094154 + ... + 6094193.

It is an arithmetic number, because the mean of its divisors is an integer number (42659218).

Almost surely, 2^243766940 is an apocalyptic number.

243766940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243766940 is an abundant number, since it is smaller than the sum of its proper divisors (268143676).

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

243766940 is a wasteful number, since it uses less digits than its factorization.

243766940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12188356 (or 12188354 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 41.

The square root of 243766940 is about 15613.0375007556. The cubic root of 243766940 is about 624.6809593019.

The spelling of 243766940 in words is "two hundred forty-three million, seven hundred sixty-six thousand, nine hundred forty".