243887480 has 16 divisors (see below), whose sum is σ = 548746920. Its totient is φ = 97554976.

The previous prime is 243887473. The next prime is 243887531. The reversal of 243887480 is 84788342.

It is a super-2 number, since 2×243887480² = 118962205801500800, which contains 22 as substring.

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, 3048554 + ... + 3048633.

Almost surely, 2^243887480 is an apocalyptic number.

243887480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243887480 is an abundant number, since it is smaller than the sum of its proper divisors (304859440).

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

243887480 is a wasteful number, since it uses less digits than its factorization.

243887480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6097198 (or 6097194 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 44.

The square root of 243887480 is about 15616.8972590589. The cubic root of 243887480 is about 624.7839082289.

The spelling of 243887480 in words is "two hundred forty-three million, eight hundred eighty-seven thousand, four hundred eighty".