243054994 has 48 divisors (see below), whose sum is σ = 461256768. Its totient is φ = 95201568.

The previous prime is 243054991. The next prime is 243055009. The reversal of 243054994 is 499450342.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (243054991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135427 + ... + 137209.

It is an arithmetic number, because the mean of its divisors is an integer number (9609516).

Almost surely, 2^243054994 is an apocalyptic number.

243054994 is a deficient number, since it is larger than the sum of its proper divisors (218201774).

243054994 is a wasteful number, since it uses less digits than its factorization.

243054994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919 (or 1912 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 243054994 is about 15590.2211017035. The cubic root of 243054994 is about 624.0722183153.

The spelling of 243054994 in words is "two hundred forty-three million, fifty-four thousand, nine hundred ninety-four".