243265516 has 12 divisors (see below), whose sum is σ = 458462032. Its totient is φ = 112276368.

The previous prime is 243265513. The next prime is 243265523. The reversal of 243265516 is 615562342.

It is a super-2 number, since 2×243265516² = 118356222549492512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243265513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2339040 + ... + 2339143.

Almost surely, 2^243265516 is an apocalyptic number.

243265516 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

243265516 is a deficient number, since it is larger than the sum of its proper divisors (215196516).

243265516 is a wasteful number, since it uses less digits than its factorization.

243265516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4678200 (or 4678198 counting only the distinct ones).

The product of its digits is 43200, while the sum is 34.

The square root of 243265516 is about 15596.9713726736. The cubic root of 243265516 is about 624.2523462989.

The spelling of 243265516 in words is "two hundred forty-three million, two hundred sixty-five thousand, five hundred sixteen".